Bright, tender, and light, Sheet Pan Lemon Herb Chicken Breast and Zucchini combines juicy marinated chicken with roasted summer squash on one tray for effortless prep and cleanup.
The secret to keeping lean chicken breasts juicy while avoiding soggy zucchini is slicing the chicken into thin cutlets and roasting at high heat (400°F / 200°C). Slicing the breasts ensures they cook rapidly at the exact same pace as thick half-moon zucchini slices, giving the squash caramelized edges without turning it to mush.
Why You’ll Love This Meal
- Low-Carb & Mediterranean-Style: High-protein, gluten-free, and refreshing.
- Under 30 Minutes: A quick 20-minute roast makes it perfect for busy weeknights.
- Meal-Prep Friendly: Holds up remarkably well in airtight containers for healthy weekday lunches.
- Zero Fuss: Everything cooks together on a single lined sheet pan.
Key Ingredients Overview
- Chicken: 1½ lbs boneless, skinless chicken breasts (sliced horizontally into thin cutlets).
- Vegetables: 2 medium zucchini and 1 yellow squash (sliced into ½-inch thick half-moons), plus 1 cup cherry tomatoes (optional).
- Lemon Herb Marinade: 3 tbsp olive oil, 3 tbsp fresh lemon juice, 1 tbsp lemon zest, 3 garlic cloves (minced), 1 tbsp dried oregano, 1 tsp dried thyme, ½ tsp onion powder, salt, and black pepper.
- Finishers: Fresh chopped parsley, extra lemon wedges, and optional crumbled feta cheese.
Step-by-Step Instructions
1.Prep Oven & Sheet Pan:5 min.
Preheat your oven to 400°F (200°C) and line a large sheet pan with parchment paper or aluminum foil for easy cleanup.
2.Whisk the Marinade:3 min.
In a small bowl or measuring cup, whisk together olive oil, lemon juice, lemon zest, minced garlic, oregano, thyme, onion powder, salt, and pepper.
3.Coat Chicken & Vegetables:4 min.
Place the sliced chicken cutlets and zucchini on the baking sheet. Pour the marinade over everything, tossing the zucchini and turning the chicken pieces so every side is well coated.
4.Roast at High Heat:18-20 min.
Arrange the chicken breasts near the center of the pan and spread the zucchini in a single layer around them (avoid overlapping). Roast for 18–20 minutes, until the chicken reaches an internal temperature of 165°F (74°C) and the zucchini is tender with browned edges.
5.Garnish & Serve:2 min.
Remove from the oven, squeeze fresh lemon juice over the top, sprinkle with chopped parsley and crumbled feta, and serve immediately!
Expert Tips for Success
- Slice Breasts into Thin Cutlets: Whole, thick chicken breasts take much longer to cook through than sliced squash. Cutting thick breasts in half horizontally ensures the meat and zucchini finish cooking at the exact same time.
- Give Zucchini Space: Overcrowding causes squash to steam instead of roast. Make sure slices lie flat in a single layer to get delicious caramelized edges.
The Recipe Card
- Prep Time: 12 mins
- Cook Time: 20 mins
- Total Time: 32 mins
- Yield: 4 Servings
Ingredients:
- 1½ lbs Chicken Breasts (halved horizontally into cutlets)
- 2 Medium Zucchini & 1 Yellow Squash (sliced ½-inch thick)
- 3 tbsp Olive Oil & 3 tbsp Fresh Lemon Juice (plus 1 tbsp zest)
- 3 Garlic Cloves (minced)
- 1 tbsp Dried Oregano & 1 tsp Dried Thyme
- Salt, Black Pepper & Fresh Parsley to taste
Instructions:
Preheat oven to 400°F (200°C). Whisk olive oil, lemon juice, zest, garlic, oregano, thyme, salt, and pepper. Arrange chicken cutlets and sliced zucchini on a lined baking sheet and toss with marinade. Roast for 18–20 minutes until chicken reaches 165°F. Garnish with fresh parsley and serve warm!
