Upside-Down Pizza Casserole

1 lb Ground Beef

1 c Onions; chopped

1 c Green Bell Pepper; chopped

1 cn Pizza Sauce; 15 oz.

1/4 lb Pepperoni; coarsely chopped

1/2 ts Italian Seasoning; dried

1 Jar Green Giant Sliced

-Mushrooms; drained; 2.5 oz. 6 oz Mozzarella Cheese; thinly

-sliced ----------------------------------TOPPING---------------------------------- 1 c Milk

1 tb Oil

2 Eggs

1 c All-Purpose Flour; Pillsbury

-Best; or Unbleached Flour 1/4 ts Salt

1/4 c Parmesan Cheese; grated

Heat oven to 400F. In lrg. skillet over med.-high heat, brown ground beef, onions and bell pepper. Drain. Stir in pizza sauce, pepperoni, Italian seasoning and mushrooms. Bring to a boil. REduce heat to low; simmer uncovered 10 mins., stirring occasionally. Meanwhile, in sm. bowl combine milk, oil and eggs; beat 1 min. at med. speed. Lightly spoon flour into measuring cup; level off. Add flour and salt; beat 2 mins. at med. speed or until smooth. Spoon meat mixture evenly into ungreased 13x9" baking dish. Place cheese slices over hot meat mixture. Pour topping evenly over cheese, covering complete; sprinkle with Parmesan cheese. Bake at 400F for 20-30 mins. or until puffed and deep golden brown. Makes 6-8 servings. "It`s fun to watch the `crust` rise while this unique casserole is baking. The secret to the tender crust is following the recipe directions carefully and using the pan size called for."