In a large bowl, combine the ground turkey or chicken, gluten-free breadcrumbs, onion, bell pepper, garlic, parsley, eggs, applesauce, salt, pepper, and thyme.
Mix until well combined.
Transfer the mixture to a loaf pan and shape it into a loaf.
Spread ketchup on top of the meatloaf.
Bake for 45-55 minutes, or until the internal temperature reaches 165°F (74°C).
Let it rest for 10 minutes before slicing and serving.
Notes
For added flavor, consider mixing in your favorite herbs or spices.
Serve with a side of steamed vegetables for a complete meal.
Leftovers can be stored in the refrigerator for up to 3 days.