Tuscan Chicken and Spinach Panini

Elevate your sandwich game with this truly exceptional Chicken Florentine Panini! Imagine tender, seasoned chicken nestled alongside creamy garlic mayonnaise, sweet and savory caramelized onions, vibrant fresh spinach, and deliciously melted Provolone cheese, all encased in a perfectly crispy flatbread. This recipe transforms simple ingredients into an incredibly tasty and satisfying meal that’s perfect for any occasion.

Two halves of a golden-brown Chicken Florentine Panini, stacked invitingly on a white plate, showcasing the rich filling and toasted bread.

Discover the Irresistible Allure of Chicken Florentine Panini

There’s something uniquely comforting and satisfying about a perfectly crafted panini. This Chicken Florentine Panini recipe stands out as a true culinary delight, inspired by both the practical genius of a Pillsbury Bake-off winner from 2002 and the gourmet offerings found at popular eateries like Panera Bread. It’s a testament to how simple, quality ingredients can be transformed into something extraordinary. This sandwich strikes a magnificent balance between savory chicken, the subtle sweetness of caramelized onions, the fresh zest of spinach, and the rich creaminess of melted cheese, all brought together by a secret weapon ingredient that simplifies the process without sacrificing flavor.

The Smart Secret: Refrigerated Pizza Dough for Your Panini

One of the most brilliant aspects of this recipe, and what truly sets it apart for home cooks, is its innovative use of refrigerated pizza dough. For many, finding the perfect bread for a homemade panini can be a challenge. While breads like focaccia are delicious, they aren’t always readily available or easy to make from scratch. This recipe elegantly sidesteps that hurdle by using pre-made pizza dough, which is a fantastic and convenient alternative.

When baked, refrigerated pizza dough transforms into a wonderfully crispy and structurally sound flatbread, providing the ideal foundation for this hearty sandwich. It’s incredibly simple to prepare: just unroll it onto a baking sheet, bake until golden brown, and then cut it into perfect squares or rectangles. This method not only saves a significant amount of time but also ensures a consistently delicious and robust base for your panini, making gourmet sandwich creation an effortless affair. It’s a game-changer for anyone who loves paninis but wants an easier path to homemade perfection.

What truly elevates this sandwich from merely good to absolutely phenomenal are two distinct flavor components: the robust garlic mayonnaise and the exquisitely caramelized onions. These aren’t just minor additions; they are the heart and soul of the panini’s bold flavor profile. The garlic mayonnaise introduces a creamy, pungent richness that perfectly complements the other fillings. Meanwhile, the onions, slow-cooked to a tender, golden perfection, are infused with a delightful blend of granulated sugar, tangy balsamic vinegar, and a hint of crushed red pepper flakes. This combination creates a complex sweet-and-savory layer with a subtle warmth that harmonizes beautifully with the chicken and spinach. Each bite is a symphony of flavors, making this panini an unforgettable experience.

A golden-baked flatbread generously topped with a vibrant mixture of fresh spinach and sweet caramelized red onions, ready for the next layers.

Elevate Your Cooking: Expert Tips for the Perfect Chicken Florentine Panini

**Garlic Mayonnaise: A Flavor Foundation:** For optimal flavor development, prepare your garlic mayonnaise at least a few hours, or even a day, ahead of time. This allows the minced garlic to infuse thoroughly into the mayonnaise, mellowing its raw bite and creating a deeply aromatic and savory spread that truly enhances the panini. Cover it tightly and store it in the refrigerator until you’re ready to assemble.
**Effortless Meal Prep for Busy Days:** Maximize your efficiency by preparing key components in advance. The chicken can be cooked, sliced, and refrigerated, while the caramelized onions can also be made and stored. Even the pizza dough can be baked, cooled, and kept in an airtight container at room temperature. This pre-preparation dramatically cuts down on assembly time, making this an ideal recipe for quick weeknight meals or last-minute entertaining.
**Herbaceous Adventures: Flavoring the Chicken:** Dried thyme imparts a classic, earthy flavor to the chicken that pairs beautifully with the Florentine elements. However, don’t hesitate to customize! Rosemary offers a more pungent, piney note, while basil can lend a sweet, peppery, and distinctly Italian aroma. Experiment with what you have on hand or what suits your personal taste preferences.
**Panini Press vs. Cast Iron Skillet: Your Tools for Perfection:** While a dedicated panini press is ideal for achieving those signature grill marks and even, consistent pressure, it’s not essential. A heavy-bottomed cast iron skillet makes an excellent substitute. Simply cook the sandwiches in the skillet, and use another heavy pan or a sturdy spatula to press down firmly, mimicking the action of a panini press and ensuring a beautifully crispy exterior.
**The Art of Flattening Chicken Breasts:** This crucial step ensures more than just a thinner profile. Flattening the chicken breasts to an even 1/4-inch thickness guarantees that they cook faster and more uniformly, eliminating dry spots. Furthermore, uniformly thick chicken slices integrate better into the flatbread, creating a more balanced and enjoyable bite in your panini.
**Choosing Your Cheese: The Melt Factor:** Provolone cheese is a fantastic choice for its mild, slightly tangy flavor and excellent melting capabilities, creating that satisfying gooey center. Feel free to explore other melt-friendly cheeses like mozzarella for a classic touch, fontina for a nuttier profile, or even a good quality Swiss for a sharper taste. The key is a cheese that melts smoothly and complements the other robust flavors.

Two perfectly grilled Chicken Florentine Panini halves stacked on a white plate, showcasing crispy bread and succulent filling.

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Chicken Florentine Panini Recipe

Rating: 4 out of 5 stars (based on 1 vote)

Prep:
15 mins

Cook:
22 mins

Total:
37 mins

Servings:
4

Close-up of a perfectly prepared Chicken Florentine Panini, displaying the crispy bread and melted cheese.

Print Recipe

This easy Chicken Florentine Panini is packed with flavorful chicken, tender spinach, sweet caramelized onions, and delicious provolone cheese, all grilled to perfection on crispy flatbread.

Equipment

Jellyroll Pan (15×10-inch baking sheet)
Cast Iron Skillet (or panini press)
Meat mallet or rolling pin

Ingredients

1/4 cup mayonnaise
1 garlic clove, minced
1 (10-ounce) tube refrigerated pizza crust
1 1/2 tablespoons olive oil, divided
1 medium red onion, cut in half and thinly sliced
2 teaspoons granulated sugar
1 tablespoon balsamic vinegar
1/4 teaspoon crushed red pepper flakes
2 boneless, skinless chicken breasts
Salt and pepper, to taste
1/4 teaspoon dried thyme
1 (9-ounce) package frozen, chopped spinach, thawed and squeezed to get rid of excess liquid
8 provolone cheese slices

Instructions

In a small bowl, thoroughly combine the mayonnaise and minced garlic. Stir well, then cover and refrigerate until needed. For the best flavor, allow it to chill for at least 30 minutes to let the flavors meld.
Preheat your oven to 375 degrees F (190 degrees C). This temperature is perfect for achieving a golden and crispy pizza dough base.
Heat 1 tablespoon of olive oil in a large nonstick skillet over medium heat. Add the thinly sliced red onion and sauté for about 3 minutes until it begins to soften. Stir in the granulated sugar, balsamic vinegar, and crushed red pepper flakes. Continue to cook for another 5 minutes, or until the onions are beautifully tender and caramelized. Transfer the caramelized onions to a separate bowl and set aside.
Once the oven is preheated, unroll the refrigerated pizza dough and carefully press it into a 15×10-inch jellyroll pan or a similar-sized baking sheet. Bake for 10 minutes, or until the dough is golden brown and cooked through. Remove from the oven, allow it to cool slightly on a wire rack, then cut it into 4 equal rectangular portions. These will be your panini bread bases.
Wipe the skillet clean to remove any onion residue. Place the boneless, skinless chicken breasts between two sheets of plastic wrap or parchment paper. Using a meat mallet or rolling pin, flatten them evenly to approximately 1/4-inch thickness. Season both sides generously with salt, pepper, and dried thyme.
Heat the remaining 1/2 tablespoon of olive oil in the same clean skillet over medium-high heat. Add the flattened chicken breasts and cook for 4 to 5 minutes per side, or until they are thoroughly cooked through and exhibit a lovely golden-brown sear. Transfer the cooked chicken to a cutting board, let it rest for 5 minutes, then slice it into thin, even strips.
To assemble your paninis: Spread the prepared garlic mayonnaise mixture generously on one side of two of the baked flatbread rectangles. On the remaining two flatbread rectangles, arrange even layers of the sliced chicken, followed by the thawed and squeezed spinach, and then the delicious caramelized onions. Top each of these loaded halves with two slices of provolone cheese. Carefully place the mayonnaise-spread flatbread halves on top, with the mayonnaise side facing down onto the fillings.
Lightly grease a cast iron skillet or your panini press with a small amount of olive oil and heat it over medium-high heat. Place the assembled sandwiches in the hot skillet or press. Cook for 3-5 minutes per side, or until the flatbread is beautifully golden brown and crispy, and the cheese is thoroughly melted and gooey. If using a skillet, press down firmly on the sandwiches with a sturdy spatula or another heavy pan to ensure even grilling and a compact panini.
Once cooked to your liking, remove the paninis from the heat. Carefully cut each sandwich in half diagonally for a classic presentation and easier handling. Serve your irresistible homemade Chicken Florentine Panini immediately and savor every flavorful bite!

Nutrition Information (Approximate Per Serving)

Nutrition information is automatically calculated and provided for general guidance only. It should be used as an approximation, as values can vary based on specific ingredients and preparation methods.

Did you make this delicious panini?
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A close-up of a Chicken Florentine Panini, revealing its crispy exterior and the warm, melted cheese and vibrant fillings within.

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