A massive party sub sandwich stacked with deli meats, cheeses, and fresh vegetables feeds a crowd with high protein, family-style ease. This impressive centerpiece is perfect for game day and celebrations.
Slice the Italian sub roll lengthwise, taking care not to cut all the way through to maintain a hinge for easy serving.
Spread the mayonnaise evenly on one side and mustard on the other, making sure the edges are coated for moisture balance.
Layer the deli meats (turkey, ham, salami) in sequence, stacking each with a slight overlap for even distribution and texture.
Arrange the provolone and cheddar cheese slices over the meats, ensuring full coverage for stability and flavor foundation.
Top with shredded lettuce, tomato slices, and thinly sliced red onion; then drizzle olive oil and red wine vinegar, sprinkle salt and black pepper, and gently press the sandwich closed. Let rest for 5 minutes before slicing.