Heat a large pot over medium-high heat and add the ground beef
Break apart the beef with a spoon and cook until browned
Drain excess grease from the pot
Add chopped onions green bell pepper and celery stirring until softened
Stir in chili powder cumin garlic powder salt and black pepper
Let the spices cook for 30 seconds to enhance flavor
Pour in the diced tomatoes tomato sauce and water or beef broth
Add kidney beans and pinto beans stirring well to combine
Bring to a boil then reduce heat and let simmer for at least 30 minutes
For a thicker chili mash some of the beans against the side of the pot
Serve hot topped with shredded cheese green onions or sour cream