In a frying pan over medium-high heat, add olive oil in then add onion and stir around for 2 minutes.
Add ground beef and minced garlic (or garlic flakes). Season with salt and pepper. Cook for 5 minutes more.
Stir in hot sauce, chopped tomatoes, tomato paste or puree, and chili powder. Let this chili simmer on low heat for 15 minutes. Season with more salt and pepper if needed.
Serve with cauliflower rice, sprinkled with sliced fresh chilli.