Preheat the oven to 375°F. In a mixing bowl, combine the ground beef, breadcrumbs, egg, onion, and 2 tablespoons of the teriyaki sauce. Form the mixture into a loaf shape.
Lay the bacon slices side by side on a baking sheet. Place the meatloaf on top and wrap the bacon ends over the top. Brush the remaining teriyaki sauce over the bacon. Bake for 45 minutes until the internal temperature reaches 160°F and the bacon is crisp.
While the meatloaf bakes, heat the vegetable oil in a large skillet over medium heat. Add the garlic and cook for 30 seconds. Stir in the peas and carrots and cook for 2 minutes. Add the cooked rice, pineapple chunks, and soy sauce. Stir fry for 5 minutes until everything is hot. Remove from heat and stir in the green onions.
Slice the meatloaf and serve it with the pineapple fried rice on the side.