Preheat oven to 350 F.
Open the can of sloppy joe sauce.
In a large skillet, brown the ground beef with the minced onion and garlic powder. Drain and return to the skillet. Stir in the sloppy joe sauce and cumin. Bring to bubbling over medium low heat to allow flavors to infuse.
Assemble the nachos on large, rimmed baking sheet. Add chips, then sloppy joe sauce, then shredded cheese sprinkled evenly on top. Bake in the preheated oven for 10 to 15 minutes, or until cheese has melted. Garnish with sour cream.
Serve Sloppy Joe Nachos with some fresh fruit or salad on the side!