Heat your heavy-bottomed pot over medium-high heat. Add the avocado oil and carne stew meat. Sear pieces for 3-4 minutes per side until browned.
Remove the stew meat from the pot and set it aside.
Reduce the heat to medium. Toss in the diced onion, bell pepper, and garlic. Sauté for 5-8 minutes until the veggies become soft and translucent.
Brown the ground beef in the same pot, crumbling it with a wooden spoon as it cooks until no pink remains.
Mix in the tomato paste and spices—chili powder, garlic powder, onion powder, cumin, and smoked paprika. Stir until everything is evenly coated.
Return the stew meat to the pot. Pour in the fire-roasted diced tomatoes and stir everything together.
Reduce the heat to medium-low, cover the pot with a lid, and let the chili simmer for 1 hour. Stir occasionally while letting the stew meat get tender.
Serve hot with shredded cheese, chopped cilantro, sour cream, or keto cornbread. Enjoy!