Try this homemade Cheesy Vegetable Sandwich Grill on Sourdough recipe the whole family will love. Made with bread, caramelized onions, fresh mushrooms a…
This Cheesy Vegetable Sandwich Grill on Sourdough relies on simple, everyday ingredients such as grey poupon bistro sauce, qt. caramelized onions and butter, softened. It comes together quickly and makes 4 servings, at about 430 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