Mexican Lasagna
["1 lb. lean ground beef", "1/2 c. chopped onions (optional)", "1 (15 oz.) can Ranch Style beans or chili beans", "2 (15 oz.) cans tomato sauce", "1 (4 oz.) can diced green chilies", "1 pkg. taco seasoning mix", "6 to 10 flour tortillas, cut into 2-inch pieces", "2 c. shredded Cheddar cheese or Jack cheese"]
["Note:", "Extra cheese may be used if desired."]
["lean ground beef", "onions", "beans", "tomato sauce", "green chilies", "taco seasoning mix", "flour tortillas", "Cheddar cheese"]