In a large bowl mix the ground beef, seasonings, onion powder, salt, ground pepper, breadcrumbs, Worcestershire Sauce, mustard, ketchup, and egg. Mix until all ingredients are combined.
Divide meat into 4 equal parts.
Shape them into small ovals.
Place them in the air fryer leaving space around each one for air to circulate.
Air Fry at 350*F for 11-13 minutes.
Pour about 2 Tbsp of Barbecue Sauce on top of each mini meatloaf, then air fry for an additional 3 minutes. This will allow it to caramelize on top and soak into the meatloaf.
The internal temperature should be at least 160*F before serving.
Serve.
Notes
This can also be done with half ground beef and half ground sausage.