In a large pot, brown the ground beef over medium heat. Drain excess fat.

Add chopped onion and minced garlic to the pot, cooking until softened.

Stir in the chili powder, cumin, salt, and black pepper, cooking for an additional minute.

Add kidney beans and diced tomatoes, bring to a simmer, and cook for 20 minutes.

While the chili simmers, grill or cook the hot dogs on a skillet until heated through and slightly charred.

Warm the hot dog buns on the grill or in the oven.

Place each hot dog in a bun, top generously with chili, and sprinkle with cheddar cheese and green onions.

Serve immediately with your favorite condiments.