You don't say what other ingredients you have so it is hard to know what you can make. You could try the supercook site to find different recipes that use what you have right now. www.supercook.com/
Grilled hamburger patties are one option.
You could brown the ground beef and drain the fat and make soup, tacos, add to pasta or a casserole.
If it were me, and I didn't have many ingredients, then I'd just make the meatloaf and plan healthier meals in advance for next week.