Cut beef tips into bite size strips (if needed), dust with seasoning and flourSaute onion, garlic and mushrooms in olive oil and butter
Remove from pan, add more butter and saute beef strips
Once beef strips are done, add back onion mixture, along with beef broth and cream of mushroom soup. Saute until mixture becomes thickened, stir to keep from sticking
(If needed add a dusting more of flour to mixture to thicken)
Once gravy is thick, add sour cream at end and serve hot over egg noodles or mashed potatoes