1/4 cup unsweetened pineapple juice
1/4 cup reduced-sodium soy sauce
1/4 cup olive oil
2 tablespoons lemon juice
2 tablespoons cider vinegar
6 garlic cloves, minced
1 tablespoon chopped sweet onion
1-1/2 teaspoons ground mustard
1/2 teaspoon minced fresh parsley
4 beef tenderloin steaks (4 ounces each)