Slice your hoagie roll lengthwise, leaving one side attached.
Layer salami, ham, and provolone cheese on the bottom half.
Add lettuce, tomatoes, onions, and banana peppers.
Drizzle olive oil and vinegar mix evenly over the veggies.
Sprinkle Italian seasoning, salt, and pepper.
Press the sandwich gently to keep everything in place.
Cut in half and serve fresh.
Notes
For the freshest taste, always assemble your Italian sub right before serving. If packing for later, keep bread and filling separate until ready to eat.
Keyword deli sandwich, homemade sub, Italian sub recipe