Ok, so basic meatloaf: onions, peppers, garlic sautéed and cooled add to ground beef can be “stretched” (feeding a lot for as little as possible) with eggs & breadcrumbs season with salt, pepper, ketchup place in a loaf pan (best with some parchment/baking paper lining can be topped or wrapped with bacon & more ketchup for a glaze bake, cool/let set, slice, serve with mashed taters, gravy, peas & carrots and you have a very typical dinner circa 1950.
Now funyuns? I’d probably just grind them up and add to the meat to mix, with some mixed in with the ketchup glaze. alternatively I would have 1 or 2 rings on top as a garnish.