Finely dice the onion and bell peppers. Mince garlic.
In a hot frying pan, add the ground beef, onion, and bell peppers. Cook throughout, stirring often.
When the meat is cooked through and the onion is translucent, add the minced garlic and cook for a couple of minutes, stirring.
Reduce heat to low. Add the seasonings, tomato paste, and water. Stir and let simmer for a few minutes.
For a taco salad, serve taco filling over a few tortilla chips, then top with cheese, lettuce, tomatoes, olives, avocado, sour cream, a squeeze of lime juice, and a drizzle of ranch dressing. OR serve it in a taco, burritos, or over a tostada.