Enchilada Casserole

Ingredients

• 1 medium onion, diced
• 1 medium green pepper, diced
• 2 stalks celery, diced
• 1 (15 oz.) can whole corn, drained
• 1/4 tsp. rosemary
• 1/4 tsp. oregano
• 1/4 tsp. marjoram
• 2 lb. ground beef (90% lean)
• 2 tsp. salt
• 1/2 tsp. pepper
• 2 (8 oz.) cans tomato sauce
• 1 (10 oz.) can enchilada sauce
• 12 tortillas (flour or corn; corn has less calories)
• 16 oz. grated sharp cheese or Cheddar (can use low-fat cheese)