Pizza Sandwich - cooking recipe

Ingredients

1 lb. ground beef
2 cans tomato sauce (8 oz. each)
1 tsp. oregano
2 c. Bisquick baking mix
1 egg
2/3 c. milk
8 slices American cheese
1 (2 oz.) can sliced mushrooms
1/4 c. grated Parmesan cheese

Preparation

Heat oven to 400\u00b0.
Cook and stir ground beef until brown; drain.
Mix in 1 can tomato sauce and oregano; simmer, uncovered, 10 minutes.
Stir baking mix, egg and milk into a soft dough.