Step 1

Heat the olive oil in a large skillet on the stove over medium-high heat. Add the onion to the pan and cook until softened, about 2 minutes.

Step 2

Add the ground beef in the pan and cook until browned, crumbling with a spoon or spatula.

Step 3

Add the garlic to the pan and cook, stirring, for 30 seconds. Remove the pan from the heat. Transfer the contents of the skillet to the slow cooker.

Step 4

Add the bell pepper, chili powder, cumin, oregano, paprika, brown sugar, salt, black pepper, tomato paste, broth and diced tomatoes to the slow cooker. Stir.

Step 5

Gently stir in the kidney beans and black beans.

Step 6

Cover and cook on low for 6 to 8 hours or on high for 3 to 4 hours.

Step 7

Serve chili with toppings as desired.