Mexican Layered Casserole
Ingredients:
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nonstick cooking spray
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2 tablespoons vegetable oil
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1 pound ground beef
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1 medium onion
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1 (15 ounce) can black beans, drained
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1 (14 ounce) can green enchilada sauce
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1 (4 ounce) can chopped green chiles
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1 (12 ounce) package white corn tortillas
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1 cup sour cream
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1 cup crumbled corn chips
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2 cups shredded Cheddar cheese
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1 (6 ounce) can sliced black olives
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1 tomato, chopped