Heat oil in Dutch oven over medium-high heat until shimmering. Add onion and cook until softened, about 4 minutes. Add chili powder, garlic, and cumin and cook until fragrant, about 30 seconds.
Add beef, breaking up any large pieces with wooden spoon, until no longer pink, about 5 minutes. Add beans and tomatoes and their juices and cook until thickened, about 15 minutes. Season with salt and pepper to taste.
Transfer to a bowl and topped with cheddar cheese, sour cream and chopped green onions.
Enjoy!
Notes
Recipe source: America’s Test Kitchen: The Best Simple Recipes.
Recipe by Salu Salo Recipes at https://salu-salo.com/quick-all-american-chili/