When grilling your meat, it is best to keep the temperature between 375 and 450 degrees. This will ensure that the meat is cooked through, adding those tasty, smoky flavors without drying it out or burning it. The high heat also shortens the cooking time. As for veggies, it depends on which ones you’re grilling. Onions, squash, and peppers grill best at about 550 degrees F at first but then lowered to 225 to 275 degrees F to finish cooking. Broccoli, asparagus, mushrooms, or similar veggies should be grilled at about 400 to 450 degrees F.