Fajita Beer Marinade

1 cup bottled Italian salad dressing
12 ounces beer
1 large onion, minced
Juice of 3 Mexican limes
3 tablespoons chili powder
2 tablespoons minced fresh cilantro leaves
2 tablespoons lemon pepper seasoning
1 tablespoon Worcestershire sauce
2 teaspoons ground cumin
1 1/2 teaspoons garlic powder
1 teaspoon cayenne
1 bay leaf