These burgers have all the fun and flavor of a diner favorite, but they're easy to prepare at home, using Hamburger Helper sloppy joe mix.
Start cooking the sloppy joe mixture while the onion rings soak, and it will be ready to serve about the same time the onion rings come out of the oven.
Toast the hamburger buns, if desired.
If you don’t have buttermilk, make your own by squeezing half a lemon (about 1 tablespoon) into a cup of milk.
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