Wrap 1 bacon slice tightly around each wiener, tucking in ends of bacon slices to secure. Grill 8 to 10 min. or until bacon is done and wieners are heated through, turning occasionally. Drain on paper towels. Meanwhile, brush mayo evenly onto both sides of buns, then grill 1 to 2 min. on each side or until lightly toasted on both sides.
Fill buns with wieners; top with tomato mixture, ketchup and mustard.
Tip 1: Serving Suggestion--Serve with a mixed green salad and your favorite fresh fruit to round out the meal.
Tip 2: Use Your Stove Top--Cook bacon-wrapped wieners in large skillet on medium heat 8 to 10 min. or until bacon is done, turning frequently. Drain on paper towels. Toast buns in oven.
Tip 3: Substitute-- Substitute serrano chiles, chipotle peppers, or pickled jalapeño pepper slices for the regular jalapeño peppers.