Introduction

If you’re craving a creamy pasta that tastes like something you’d order at a cozy Italian restaurant—but you only have about half an hour—this Pesto Chicken Florentine is the kind of recipe that saves the day. It combines tender chicken strips, penne pasta, and fresh spinach in a rich Alfredo-style sauce, then takes the flavor up a notch with a spoonful (or two) of basil pesto. The result is creamy, herby, and satisfying without being complicated.

“Florentine” usually means the dish includes spinach, and here it’s more than just a garnish. The spinach wilts into the sauce and adds freshness that balances the richness of the creamy base. Meanwhile, the pesto brings that unmistakable basil-garlic brightness that makes each bite feel lively rather than heavy. It’s a smart shortcut meal too: an Alfredo sauce mix speeds up the process while still giving you the silky texture everyone loves.

This is a perfect weeknight pasta for busy evenings, but it’s also a great “impress without stress” dinner when you want something a little special. Serve it with a crisp salad, a squeeze of lemon, or a sprinkle of red pepper flakes, and it feels instantly elevated.

Why You’ll Love This Recipe

• Creamy + fresh at the same time: Alfredo richness gets balanced by basil pesto and spinach.

• Fast enough for weeknights: Start to finish in about 30 minutes.

• Family-friendly: Mild, comforting flavors with optional heat for spice lovers.

• Flexible and customizable: Easy to swap pasta shapes, add vegetables, or lighten the sauce.

Equipment

• Large skillet (big enough to toss pasta + chicken + spinach)

• Large pot (for boiling pasta)

• Colander

• Cutting board

• Knife

• Measuring spoons

• Tongs or a large spoon (for tossing everything together)

Ingredients

Main Ingredients

• 1 Tbsp olive oil

• 1 lb boneless, skinless chicken breasts, sliced into thin strips

• 2 cloves garlic, finely chopped

• 1 (1.5 oz) package Alfredo sauce mix
  (prepare according to package directions—some require milk and butter)

• 2 Tbsp prepared basil pesto

• 8 oz penne pasta

• 2 cups fresh spinach, packed

• 1 Tbsp grated Romano cheese

Optional Ingredients

• Crushed red pepper (for serving)

• Extra pesto (for a stronger basil flavor)

• Extra Romano or Parmesan (for a cheesier finish)

• A squeeze of lemon (brightens the sauce beautifully)

• Cherry tomatoes (halved, tossed in at the end for a fresh pop)

Instructions

Step 1: Preparation

1. Slice the chicken into thin, even strips so it cooks quickly and stays tender.

2. Chop the garlic and measure out pesto and spinach so everything is ready to go (this recipe moves fast once cooking starts).

Step 2: Cooking the Pasta

1. Bring a pot of salted water to a boil.

2. Cook penne according to package directions until al dente.

3. Drain well.
   Tip: If you’re adding pasta immediately into the sauce, you can skip rinsing so the sauce clings better. If the pasta will sit for a few minutes, a quick rinse can prevent sticking—then drain again thoroughly.

Step 3: Cooking the Chicken

1. Heat olive oil in a large skillet over medium-high heat.

2. Add chicken strips and cook, turning occasionally, until browned and cooked through—about 5 minutes.

3. Transfer chicken to a plate (keep it nearby).

Step 4: Building the Sauce

1. In the same skillet, add garlic and cook about 1 minute, just until fragrant.

2. Prepare the Alfredo sauce mix according to package directions (including milk/butter if required), stirring as it thickens and becomes creamy.

3. Stir in the basil pesto until the sauce turns lightly green and fragrant.

Step 5: Finishing

1. Add spinach to the sauce and toss gently until it begins to wilt.

2. Return chicken to the skillet, then add the cooked penne.

3. Toss everything together until the spinach is fully wilted and the pasta is evenly coated.

4. Sprinkle with Romano cheese and finish with crushed red pepper if you like.

Tips & Notes

• Best texture tip: Don’t overcook the chicken strips. Thin slices cook quickly—pull them as soon as they’re done to keep them juicy.

• Sauce consistency: Alfredo sauce mix thickens as it sits. If it becomes too thick, loosen it with a splash of milk (or a spoonful of hot pasta water if you saved some).

• Flavor boost: Pesto brands vary. Taste your pesto first—if it’s mild, add a little extra. If it’s salty, reduce added cheese slightly.

• Common mistake to avoid: High heat after adding the sauce can make it reduce too quickly. Keep the sauce at a gentle simmer so it stays silky.

Variations

Ingredient Variations

• Protein swap: Use shrimp instead of chicken (cook quickly, then remove and add back at the end).

• More vegetables: Add sautéed mushrooms, chopped roasted red peppers, or steamed broccoli.

• Extra herb flavor: Add fresh basil at the end for a brighter finish.

Dietary Variations

• Gluten-free: Use gluten-free penne and a gluten-free Alfredo thickener (or gluten-free sauce mix).

• Lighter version: Use less Alfredo base and add more spinach, or choose a lower-fat milk if your sauce mix allows it.

• Dairy-free (modified): Use a dairy-free creamy sauce alternative and dairy-free pesto; results vary by product, but it can work.

Storage & Make-Ahead

• Refrigerator: Store leftovers in an airtight container for up to 3 days.

• Reheat: Warm gently on the stovetop or microwave with a splash of milk to bring back the creamy texture.

• Make-ahead prep: Slice chicken and chop garlic in advance. You can also pre-cook pasta and toss it with a tiny bit of oil, then add to the sauce later (best within 24 hours).

Serving Suggestions

• Fresh side: Crisp green salad with lemon vinaigrette or balsamic dressing.

• Bread: Garlic bread or toasted baguette for dipping into the sauce.

• Extra topping: More Romano, cracked black pepper, and a pinch of red pepper flakes.

• Simple drink pairing: Sparkling water with lemon or a citrusy mocktail for a fresh contrast.

Time Breakdown

• Preparation Time: 15 minutes

• Cooking Time: 15 minutes

• Total Time: 30 minutes

Servings

• Serves: 4

Nutritional Information (Per Serving)

(about 2 cups)

• Calories: 540

• Protein: 38 g

• Carbohydrates: 52 g

• Fat: 20 g

• Sodium: 483 mg

Frequently Asked Questions

Can I use leftovers or substitutions?

Yes. Leftover cooked chicken works well—slice it and add it near the end so it warms through without drying out. You can also swap penne for rotini, farfalle, or fettuccine. If you don’t have Romano, Parmesan is a great substitute.

Can I make this recipe ahead of time?

You can prep the chicken and vegetables ahead, but pasta dishes are best freshly tossed. If making ahead, store pasta and sauce separately, then reheat gently and combine.

How do I reheat it properly?

Reheat on low heat with a splash of milk (or a little water). Stir often to keep the sauce smooth. Avoid high heat, which can cause the sauce to tighten too quickly.

Can I freeze this recipe?

Creamy sauces can change texture after freezing. It’s possible, but the sauce may separate slightly. If you freeze it, thaw overnight and reheat slowly while stirring, adding a splash of milk to help smooth it out.

Conclusion

This Pesto Chicken Florentine is the perfect blend of creamy comfort and fresh basil flavor. It’s quick, satisfying, and flexible—great for busy nights, casual entertaining, or anytime you want a pasta dinner that feels special without extra effort. Add crushed red pepper for a little heat, pile on extra spinach, or swirl in more pesto to make it your own.