Slow-Cooker Beef Chili

Heat a large skillet over medium-high heat. Add beef and onion and cook until meat is browned all over, about 4 minutes. (It doesn’t need to cook all the way through!) Drain fat, then stir in tomato paste. In a large slow cooker, combine beef, onion, kidney beans, crushed tomatoes, beer, garlic, chili powder, cumin, oregano, paprika, and cayenne. Season with salt and pepper.  Taste for seasonings. Serve warm with cheese, Fritos, and green onions, if using.