Gather the ingredients. Preheat the oven to 400 degrees F (200 degrees C).

Combine condensed soup, soup mix, mushrooms, and water in a 13x9-inch casserole dish. Mix thoroughly and add beef tips. Turn to coat well. Bake in the preheated oven for 1 hour.

While beef tips are cooking, bring a large pot of lightly salted water to a boil. Add noodles and cook for 8 to 10 minutes or until al dente; drain.

Serve beef tips and sauce over noodles.