|Thin spaghetti||8 Ounce (Mueller's)|
|Meatless spaghetti sauce||2 Cup (32 tbs)|
|Thinly sliced pepperoni||4 Ounce|
|Canned mushroom stems and pieces||4 Ounce, undrained (1 Can)|
|Grated onion||1 Tablespoon, grated|
|Mozzarella cheese slice||4 Ounce, cut in half diagonally (2 Slices)|
Cook spaghetti as directed on package; drain.
In 11 x 8 x 2-inch baking dish combine spaghetti with sauce, pepperoni, mushrooms with liquid, and onion; top with cheese.
Bake at 350°F. about 20 minutes or until bubbling.