Remember that when you are camping, you are on vacation. All of you. So guys, give your wife a break and you do the cooking on your next camping trip.
This is so simple it hardly is worth mentioning, Simply mix the Taco packet into the ground beef and then add chopped onion. Then using a burger press, make hamburger patties (1/4lb or larger), and put on a grill.
Serve on a bun (toast the bun over the grill if you wish), and add Guacamole, Cheddar Cheese, and your favorite condiments. Serve with a side of potato or pasta salad.