Step 1

Pound thicker portion of chicken breast with the flat side of a meat mallet to even out their thickness. Add chicken to a gallon size resealable gallon bag.

Step 2

In a small bowl whisk together 3 Tbsp oil, lemon juice, garlic, Italian seasoning and season with 1 1/4 tsp salt and 3/4 tsp pepper.

Step 3

Pour marinade over chicken, seal bag while removing excess air. Rub marinade around the chicken after sealing bag. Transfer to refrigerator and let rest at least 15 minutes (or up to 4 hours).

Step 4

During those 15 minutes preheat oven to 425 degrees. Spray an 18 by 13-inch rimmed baking sheet with non-stick cooking spray.

Step 5

Place broccoli on baking sheet, toss with 2 Tbsp olive oil and the garlic and season with salt. Spread into an even layer covering about 2/3 of the baking sheet (as pictured).

Step 6

Remove chicken from marinade in bag and transfer to the remaining space on the baking sheet in a single layer (I spooned the garlic from the marinade over the chicken as well).

Step 7

Roast in preheated oven until each chicken breast registers 165 degrees in center and broccoli is tender and nicely browned in spots, about 16 - 22 minutes.

Step 8

Remove from oven and sprinkle broccoli with parmesan then sprinkle chicken with parsley if desired and garnish with lemon slices. Season chicken with more salt to taste as desired. Serve warm.