Begin by browning ground beef or turkey in a skillet. Drain any excess fat.
Sauté diced onion, minced garlic, and diced bell peppers until they're softened.
In your Crock Pot, combine the cooked meat, sautéed vegetables, canned diced tomatoes, tomato sauce, and drained kidney beans.
Sprinkle in chili powder, cumin, paprika, salt, and pepper. Stir to evenly distribute the spices.
Set your Crock Pot to low heat and let the chili simmer and develop flavors over several hours.
Taste the chili and adjust the seasoning if needed. You can make it spicier or milder according to your preference.
Ladle the hearty Crock Pot Chili into bowls. Garnish with shredded cheese, a dollop of sour cream, or chopped green onions if desired.