Spinach Stuffed Chicken Breast

4 8-oz Boneless skinless chicken breasts

2 tsp Sea salt

1/2 tsp Black pepper

6 oz Fresh spinach (chopped)

2 oz Cream cheese (softened)

2 cloves Garlic (minced)

1 cup Mozzarella cheese (shredded, divided)

1 tbsp Olive oil

1 medium Roma tomato (sliced thinly into 8 slices)