Brown the ground beef in a large pot or Dutch oven over medium-high heat. Drain off any excess grease.
Add the chopped onion and bell peppers to the pot and cook until softened, about 5-7 minutes.
Stir in the kidney beans, black beans, crushed tomatoes, diced tomatoes with green chilies, and chopped green chilies.
Add the chili powder, cumin, garlic powder, onion powder, salt, and pepper. Stir well to combine.
Bring the chili to a simmer, then reduce the heat to low, cover, and cook for at least 1 hour, stirring occasionally. For best flavor, simmer for 2-3 hours.
Allow the chili to cool completely before portioning it into freezer-safe containers or bags.
When ready to camp, thaw the chili overnight in the refrigerator or reheat it directly from frozen over low heat, stirring frequently, until heated through.
Serve hot with your favorite toppings.
Notes
This chili can be made up to 3 days in advance and stored in the refrigerator.
It freezes exceptionally well for longer storage.
Adjust the spice level by adding more or less chili powder and green chilies.
Consider adding other vegetables like corn or zucchini.