Preheat the oven to 400 degrees F and line a large baking sheet with parchment paper.
In a mixing bowl, combine the ground beef, breadcrumbs, egg, soy sauce, garlic powder, and ground ginger. Mix until evenly blended, then divide the mixture into four equal portions and shape each into a small loaf.
Place the mini meatloaves in the center of the prepared baking sheet. In the same bowl, toss the pineapple chunks, red bell pepper, green bell pepper, and red onion with the olive oil, salt, and black pepper. Spread the mixture around the meatloaves on the baking sheet.
Bake for 25 to 30 minutes until the meatloaves reach an internal temperature of 160 degrees F and the vegetables are tender.