1 lb ground beef
1 onion, diced
2 cloves garlic, minced
1 can (14 oz) diced tomatoes
1 can (14 oz) kidney beans, drained and rinsed
1 can (14 oz) black beans, drained and rinsed
1 can (6 oz) tomato paste
2 cups beef broth
1 tablespoon chili powder
1 teaspoon cumin