Mexican Summer Casserole

2 c. Bisquick mix
2/3 c. milk
1 lb. hamburger
1 onion, chopped
2 tomatoes, peeled and sliced thin
2 green peppers, chopped
1 c. Miracle Whip
1 c. sour cream
1 c. cheddar cheese, grated

Mix Bisquick and milk. Spread dough into 9 x 13 baking dish. Brown hamburger and onion. Drain and spread onto dough. Layer tomatoes on top of hamburger. Layer peppers on top of tomatoes. Mix together Miracle Whip, cheddar cheese, and sour cream; spread on top of layers. Bake at 350 degrees for 35-45 minutes.

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