Grilled vegetables store well for 3 days in the fridge! We love them cold, but you can get creative. You can always add leftover veggies at the very end to a soup. Nothing goes to waste in our household and shouldn't in yours too. Repurpose leftovers in different ways. In a sandwich, on a lettuce salad, or use as a pizza topping on oatmeal pizza crust, inside quesadillas, you name it.