Ingredients and Preparation
- Combine chicken, lemon juice, olive oil, garlic, parsley, salt, and pepper in a resealable plastic bag. Marinate for 2 hours to overnight.
- Place chicken on grill or indoor grill pan coated with cooking spray. Grill over medium heat for 5-6 minutes on each side, or until cooked through. Remove chicken and reduce the grill to a low setting.
- Create 2 sandwiches with the chicken breast, tomato, mozzarella, and spinach. Place the sandwiches onto the grill. Place a flat weight over each sandwich, such as a plate with a canned food item on top of it. Grill for 2-3 minutes on each side, or until the bread is toasted and the cheese melts.