1 large egg
1 package Lipton onion soup mix
2/3 cup gluten-free ketchup
½ cup grated Parmesan cheese
½ teaspoon pepper
½ teaspoon garlic powder
Mix everything in a large bowl, shape into a loaf. Place on greased baking foil inside a 9 x13 pan. Spread about 2 T. more ketchup on top, if desired, as well as another little sprinkle of garlic powder. Tent more foil loosely over top. Bake at 350 for 40 minutes. Remove foil tent and bake another 15 minutes. Remove from oven and allow to sit for 10 minutes before slicing.
I am able to find gluten-free ketchup at my local health food store. I have also used crushed gluten-free corn flakes in place of the parmesan, but I think the loaf holds together better with the cheese.