- Preheat the oven to 375°F.
- Combine the ground turkey, panko, egg, onion, garlic, and 3 cups of the teriyaki glaze. Mix until well combined.
- Evenly transfer the turkey mixture to prepared loaf pans. Brush each loaf with the remaining teriyaki glaze and bake for 50-65 minutes or until cooked to 165°F and browned on top.
- While the meatloaf bakes, cover the sweet potatoes with cold water. Bring to a boil, then reduce the heat and simmer for 10-15 minutes or until the potatoes are fork-tender. Drain well.
- Mash the cooked potatoes, then stir in butter, sour cream, and salt. Keep warm.
- Steam the green beans until tender-crisp—season with salt and pepper as desired. Keep warm.
- Serve meatloaf slices with the mashed sweet potatoes and green beans and garnish with the parsley.