Instructions:
- Preheat the oven to 375 F.
- Butter the bottom of the baking dish (I used an oval casserole dish measured 13 inches x 9 inches x 4 inches deep).
- Generously season chicken breasts on both sides with salt, lemon pepper seasoning, and a small amount of paprika.
- Place the chicken breasts, flat side down, into the greased baking dish and bake for 15-20 minutes at 375 F.
How to make creamed spinach:
- In the meantime, heat 1 tablespoon vegetable oil in a large skillet on medium heat.
- Add spinach and cook for only 1 or 2 minutes, covered, until the spinach is thoroughly heated through and starts to wilt.
- Remove from heat.
- Add minced garlic and half and half.
- Bring to a boil.
- Add shredded mozzarella cheese and keep stirring, on high heat, until mozzarella cheese starts to melt – about 30 seconds.
- Reduce heat to simmer and keep stirring until you have a nice, smooth creamed spinach – about 30 seconds or 1 more minute.
- Season with salt to your taste. Remove from heat.
Cook mushrooms:
- In a separate pan, heat 1 tablespoon vegetable oil.
- Add sliced mushrooms and cook on high-medium heat for 1-2 minutes until mushrooms caramelize. Do not salt mushrooms or it will prevent caramelization.
Smothered chicken assembly:
- Remove the chicken breasts from the oven (you baked them for 15-20 minutes).
- Top each chicken breast with the creamed spinach, chopped cooked bacon, cooked mushrooms, and broken slices of pepper jack cheese.
- Bake in the oven, uncovered for 15-20 more minutes, until chicken is cooked through, no longer pink in the center, and the juices run clear.
- Broil for the last 2-4 minutes, if desired, being careful not to burn the cheese on top.