A side salad is what I go with most of the time, but sometimes jazz it up with something else, too. If you want to utilize the long oven cook time, put in vegetables that roast at 400°F at the appropriate time to sync up with the meatloaf. If you'd rather steer clear of the oven altogether, sauteed green beans or mashed potatoes are done on the stovetop, and instant pot collard greens or an air fryer baked potato are made in other appliances altogether.