Roasted Onions With Gruyère Croutons might be just the side dish you are searching for. This recipe makes 8 servings with 307 calories, 12g of protein, and 17g of fat each. This recipe covers 12% of your daily requirements of vitamins and minerals. From preparation to the plate, this recipe takes approximately 1 hour and 6 minutes. Head to the store and pick up gruyère cheese, onions, onion, and a few other things to make it today.