In a large pot over MEDIUM heat, add the oil. Saute onions until they have softened and turned transparent. Add the minced garlic and ground beef. Continue to cook until the meat is no longer pink, about 10 minutes. Drain the fat.
Add the red bell pepper, celery, and sweet potato to the pot along with the seasonings. Continue to cook and keep stirring for another 5 minutes.
Pour in the can of crushed tomatoes, cup of water, and the package of Kevin's Natural Foods Taco Sauce. Bring the pot to a boil, reduce heat to LOW, and simmer, uncovered, for 20-minutes, or until all of the vegetables have become tender. Season with more salt and pepper, if desired
To serve, place Taco Chili con Carne in a bowl and top with sliced avocado and a spoonful of pico de gallo.