Dice onion and cook in a frying pan until tender. Cool.
In a med size bowl, put ground beef, onion, egg, panko, milk, salt and pepper (if you have parsley flakes, garlic powder, and parmesan cheese, add). Mix well.
Shape two meat loaves. Place them in a oven safe plate and bake 350 degree oven until done. (about 20 min)
Add BBQ sauce (see the recipe below) or eat with your favorite sauce.
Notes
BBQ sauce: Mix the following ingredients and cook a few mins. Ketchup, Worcester sauce, Dijon mustard, brown sugar, apple vinegar, Soy sauce, salsa (if available).