In a 13x9 inch casserole dish, combine the mushroom and beef onion soups, canned mushrooms and water. Mix thoroughly and add beef tips. Turn to coat well.
Bake in a preheated oven for 1 hour.
While beef tips are baking, bring a large pot of lightly salted water to a boil. Add pasta and cook for 8 to 10 minutes or until al dente; drain. Serve beef tips and sauce over noodles.
