Cook the bison. On sauté mode, heat 1 tablespoon oil in the Instant Pot. Add bison and brown, breaking up with a spoon or spatula.
Add veggies & spices. Heat remaining 1 tablespoon oil . Add onions, garlic, pepper, oregano, celery, jalepeno, chili powder, and cumin. Sauté 3-5 minutes until softened.
Stir in beans, broth & tomato paste. Stir in tomato paste and cook for 1 minute or until well combined. Pour in drained beans and beef bone broth and stir.
Add in tomatoes & cook. Pour in diced tomatoes; do not stir. Add the bay leaves. Secure lid and cook 14 minutes high manual pressure then naturally release.
Garnish & enjoy! Ladle bison chili into serving bowls and top with desired garnishes.
Notes
Store in an airtight container in the fridge for up to 4-5 days. Reheat on the stovetop or in the microwave.
Stovetop and slow cooker instructions in blog post.
Swap the bison for beef if bison isn't your thing.
Serve with toppings of choice. I love jalapeños, red onion, greek yogurt, and cheese.