Made from sweet grapes in a process not too dissimilar to making wine, this flavorful cooking aid is perfect for lending flavor to vegetables, meats, and even fruits. Serving roasted peppers and onions as a side dish. Sprinkle with herb blend, basil and cumin. A favorite way to pair them is with a pasta like mac and cheese: it adds back a little nutrition into the meal. I find them particularly delicious on a sausage and pepper sub or over a bowl of greens with … Bake 20 minutes and stir. Arrange in single layer on baking sheet and spray veggies with cooking spray. Cut peppers into 1" pieces. Originating in Italy, balsamic vinegar lends a potent and robust flavor to anything it’s added to. Oven-roasted peppers and onions can be used just like roasted vegetables. Roasted peppers and onions are a versatile healthy side dish for loads of different mains. Cut onions into quarters. Bake 20 minutes more or until edges are black and veggies are crisp tender. Here’s what we’d serve them with: Serving Oven-Roasted Pepper and Onion Strips. Increase oven to 425. Over salads, inside wraps, on pizza, or to make chicken fajitas.