This Roasted Veggie Sandwich combines tender, caramelized vegetables with a creamy Garlic Herb Sauce for a flexible, make-ahead meal that works for lunch, dinner, or meal prep. The method is simple: roast the vegetables and garlic together, prep the sauce while they cook, and assemble everything on hearty bread for a satisfying, colorful dish.
1medium red or white onioncut into wedges or thick strips
1small eggplantcut into strips
2tablespoonolive oilfor sandwich
1tablespoonolive oilfor sauce
1teaspoondried oregano
½teaspoonkosher saltplus more to taste
¼teaspoonfreshly ground black pepper
4–8 slices focaccia or other artisan bread
1–2 cups microgreensor arugula/spinach
½–¾ cup Garlic Herb Sauceor alternate spread
Garlic Herb Sauce (Optional — or use your favorite store-bought spread)
2large heads garlicor 3 small, tops trimmed
⅓cupcooked navy beansor cannellini/Great Northern, rinsed if canned
1teaspoonfresh lemon juice
½teaspoonkosher saltplus more to taste
½cuploosely packed fresh soft herbsdill, cilantro, parsley, mint
1tablespoonwateroptional to thin
1tablespoonolive oilfor herb sauce
Instructions
Combined Instructions for Roasted Veggie Sandwich & Garlic Herb Sauce (Optional)
Preheat the oven to 425°F (220°C) and line a large sheet pan with parchment paper.
Prep vegetables (for sandwich):
Cut zucchini, eggplant, onion, and bell pepper into strips or wedges. Place on one side of the sheet pan. Drizzle with 2 tablespoon olive oil, sprinkle with oregano, salt, and pepper, and toss to coat.
1 medium zucchini, 1 bell pepper, 1 medium red or white onion, 1 small eggplant, 2 tablespoon olive oil, 1 teaspoon dried oregano, ½ teaspoon kosher salt, ¼ teaspoon freshly ground black pepper
Add garlic (for sauce):
Slice the tops off two garlic heads, drizzle with 1 tablespoon olive oil, and wrap loosely in foil. Place on the same pan as the vegetables.
1 tablespoon olive oil, 2 large heads garlic
Roast everything together for 25–35 minutes, flipping vegetables halfway through, until tender and lightly browned. The garlic will likely need a full 35–40 minutes, remove vegetables as they finish and let the garlic continue roasting until soft and golden.
Prep sauce ingredients (for sauce):
While the vegetables and garlic roast, measure and prepare the remaining sauce ingredients (beans, herbs, lemon juice, salt) so they’re ready to blend once the garlic is done.
⅓ cup cooked navy beans, 1 teaspoon fresh lemon juice, ½ teaspoon kosher salt
Make the Garlic Herb Sauce (for sauce):
When the garlic is cool enough to handle, squeeze the cloves into a food processor. Add beans, remaining 1 tablespoon olive oil, lemon juice, salt, and herbs. Blend until smooth, adding 1 tablespoon water if needed to loosen. (If skipping the sauce, use your favorite store-bought or homemade herb spread instead.)
½ cup loosely packed fresh soft herbs, 1 tablespoon water, 1 tablespoon olive oil
Assemble sandwiches (for sandwich):
Toast or warm the bread if desired. Spread the Garlic Herb Sauce (or alternate spread) on both sides of the bread, layer roasted vegetables evenly, top with microgreens or arugula, and close the sandwich.
1 –2 cups microgreens, ½ –¾ cup Garlic Herb Sauce, 4 –8 slices focaccia or other artisan bread
Serve: Slice in half and enjoy warm or at room temperature.