Brown Ground beef and diced onion with 2 Tbsp sugar, dash of pepper, sprinkling of salt, 1 1/2 tsp. garlic, 1/2 tsp. celery seed. When browned drain meat and add 2 tbsp taco seasoning mix and 3/4 c. water (or follow pkg. directions.)
When seasonings have thickened with meat, put in bottom of casserole pan.
Put mashed potatoes or sliced cooked potatoes on top (if using raw potato slices, plan on putting in crock pot for 3-4 hours on high or 5-6 hours on low).
Pour can of kidney beans or black beans over potato layer.
Pour can of tomato soup on top of black bean layer. (Or add 2 tbsp. flour to a 15 oz. diced tomatoes and use in place of tomato soup.
Add grated cheese if desired on top of tomato layer.
Bake for 30 minutes at 350 f.