Oven Version:

Preheat the oven to 300°F (150°C).

In a mixing bowl, blend cream of mushroom soup, brown gravy mix, onion soup mix, and a cup of water until smooth.

Place beef tips in a casserole dish, then pour the mixture over them, ensuring even coverage.

Cover the dish with aluminum foil, ensuring no part is exposed.

Bake for 3 hours without peeking, letting the beef absorb all the flavors until tender.