Split the ground beef into 4 equal parts and make into four patties, each 4″ across. In a small bowl mix all dried seasonings. Press the seasoning mixture evenly into both sides of each appty. Meanwhile, heat a large, heavy, non-stick skillet (cast iron for choice) over medium heat for 5 minutes. Cook the patties in the hot skillet for 6 minutes, turning once. Remove patties and keep them warm. Increase the heat to high, add onion rings and cook until just tender, stirring all the time. Place a tomato slice on each half-bun, top with a patty and then onions. Garnish with sour cream.

Variations:

Mix the spices in with the hamburger meat before forming patties, instead of rubbing on the outside
Use fresh herbs instead of dried, increasing amounts as needed
Spread hamburger buns with butter, mayo or other dressing before adding filling
Use hot sauce instead of or as well as sour cream

Mix the garlic, salt, pepper, chili powder and mustard in a small bowl. Spred the mixture over the meat, and cut the meat into strips. Place the meat in the crockpot. Combine the onion, tomatoes and crumbled bouillon cube in a bowl, then pour the mixture over the meat. Cover the pot and cook on HIGH 3-4 hours or LOW 6-8 hours. Add the beans to the pot, cover, and cook on HIGH 30 minutes.