- In a gallon freezer bag, combine pork, oil, vinegar, 2 tablespoons Roasted Onion Burger Starter and 1 teaspoon Seasoned Salt. Seal well and toss to coat. Refrigerate several hours or up to overnight.
- Prepare grill to medium heat. Remove pork from marinade; discard bag with marinade. Place pork on grill. Grill, turning occasionally, 20 minutes or until internal temperature reaches 150°F on an instant-read food thermometer. Remove from grill. Let stand 5 minutes. Slice.
- Meanwhile, in small bowl, combine mayonnaise, remaining 1 tablespoon Roasted Onion Burger Starter and ¼ teaspoon Seasoned Salt.
- Spread roasted onion mayonnaise on toasted rolls. Top with cheese, sliced pork, lettuce, tomatoes and onions, if desired.
Makes 6 servings. Serve with fresh fruit.
Make ahead & freeze: Prepare step 1. Place step 3 ingredients except mayonnaise in a quart freezer bag. Place both bags in a gallon freezer bag. Seal well, label and freeze. Thaw completely. Continue with step 2.