1lb ground beef
1 small onion, chopped
1 can french style/string green beans, drained
16 oz pkg of tator tots
1 can cream of chicken, mushroom, or celery soup, mixed with 1 can of milk.
Brown beef and onion; drain and layer in bottom of 13/9 baking dish. Layer beans, then tator tots. Pour soup milk/mixture over casserole. Bake covered at 350 degrees for 1 hour, uncovered for another 15 minutes.