Butter a casserole dish.
Put a layer of asparagus on bottom then add soup.
Next add mushrooms and half the cheese.
Add second layer of asparagus and end with a layer of cheese.
Bake at 350 degrees for 30 minutes or until bubbly.
Sprinkle onion rings on top and return to oven for 5 minutes more.
Ingredients
2 c Asparagus, fresh, 2" lengths
1 cn Cream of mushroom soup
4 oz Mushrooms, sliced
2 c Cheddar cheese, grated
1 cn French fried onion ring, 3oz