Heat the olive oil in a large pot over medium heat. Add the chopped garlic and diced onion and sauté for 1 minute. Add the diced red pepper and cook for an additional 2 minutes.
Add the beef mince and cook, stirring occasionally, until browned.
Mix the cumin pepper, paprika powder, garlic powder, onion powder, cayenne pepper, and dried oregano together in a small bowl. Set aside. Stir in 2 tablespoons of the Tex Mex spice mix (add more to taste).
Add the tomato paste, chopped tomatoes, kidney beans, and a pinch of salt and pepper. Cover the pot and simmer for 30 minutes, stirring occasionally. If needed, add more beef stock or water during the simmering process to reach your desired consistency. Adjust seasoning to taste.