For chili sauce, heat oil in skillet or saucepot over medium-high heat and brown beef, season with salt and pepper, then add onion, jalapeno, garlic and spices. Cook until onions are tender, about 4-5 minutes, then add beer or stock and let it absorb. Add tomatoes to chili and simmer until ready to serve.
Preheat oven to 425˚F (or use package directions) and cook frozen fried onion rings to very crisp and golden, 20-25 minutes.
Meanwhile, for burgers, heat large cast-iron skillet or plancha/griddle over medium-high heat until pan is very hot with oil. Combine beef with salt, pepper, grated onion and Worcestershire. Form 6 patties, thinner at center than edges for even cooking, and grill them 7-8 minutes, turning occasionally, top with cheese and melt.
Serve cheeseburgers on rolls topped with chili, pickled jalapeno peppers and onion rings.
Bobby Flay's Green Chile Cheeseburger