Mexican Casserole without salad seasoning stuffing

1 lb extra lean ground beef 1 cup onion , chopped 1 (14 ounce) can diced tomatoes , drained 1 1/2 cups frozen corn 1 (540 ml) can black beans , drained and[...]

itemscope itemtype="http://data-vocabulary.org/RecipeIngredient"> 4 teaspoons olive oil, divided 1 cup chopped onion 2 garlic cloves, minced 1 jalapeño[...]

1 lb extra lean ground beef 1 cup onion , chopped 1 (14 ounce) can diced tomatoes , drained 1 1/2 cups frozen corn 1 (540 ml) can black beans , drained and[...]