1 cup bottled Italian salad dressing12 ounces beer1 large onion, mincedJuice of 3 Mexican limes3 tablespoons chili powder2 tablespoons minced fresh cilantro leaves2 tablespoons lemon pepper seasoning1 tablespoon Worcestershire sauce2 teaspoons ground cumin1 1/2 teaspoons garlic powder1 teaspoon cayenne1 bay leaf