1. Heat olive oil in a large pot over medium-high heat.
2. Add ground beef and cook until browned, breaking it up into small pieces with a wooden spoon.
3. Add diced onion, green bell pepper, and minced garlic to the pot and cook until vegetables are softened.
4. Add chili powder, cumin, paprika, salt, and black pepper to the pot and stir to combine.
5. Pour in diced tomatoes, tomato sauce, and water. Stir to combine.
6. Bring chili to a simmer and cook for 30 minutes, stirring occasionally.
7. Serve hot with shredded cheese, sour cream, and chopped cilantro.