1 pkg. boneless, skinless chicken breasts
1 bell pepper, sliced
1 can mushrooms, drained (optional)
1 onion, sliced
2 cloves garlic, minced
1 can whole tomatoes, with juice
oregano and basil to taste

Add all ingredients to crockpot and cook on low for 8 hours or on high for 4 hours. Serve over cooked rice or spaghetti noodles. If desired, you can add mozzarella cheese on the plate and microwave until the cheese melts.