PREHEAT grill . Coat tuna with seasoning. Grill 2 to 4 minutes on each side or until tuna flakes easily .
MIX cream cheese and vinegar until well blended.
FOR each serving: Spread 1 Tbsp. of the Neufchatel mixture evenly onto cut surfaces of roll. Place lettuce leaf, 1 tuna fillet, 2 tomato slices and 1 bacon slice on bottom half of roll; cover with top of roll. Serve immediately.