Bake this irresistible Breadless Italian Sub Sandwich at home. Made with Portobello mushrooms, extra-virgin olive oil, Kosher salt and red wine vinegar.…
This Breadless Italian Sub Sandwich relies on simple, everyday ingredients such as extra-virgin olive oil, kosher salt, red wine vinegar and dried oregano. It comes together quickly and makes 4 servings, at about 140 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.
It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.
Updated Jun 30, 2026