In a large skillet, heat the olive oil over medium heat. Add the diced onion and garlic, along with the bell pepper. Sauté for approximately 5 minutes, stirring occasionally, until the vegetables have softened and the onion is translucent.
Add the ground turkey or chicken to the skillet. Cook and stir until the meat is lightly browned and fully cooked, which should take about 5-7 minutes. While cooking, season with salt, black pepper, chili powder, cumin, smoked paprika, and oregano. Mix well to ensure the spices coat the meat, and let cook for an additional minute to enhance the flavors.
Transfer the cooked meat and vegetable mixture to your slow cooker. Pour in the crushed tomatoes, rinsed black beans, kidney beans, and minced jalapeño (if you enjoy the heat). Add the vegetable or chicken broth and give everything a good stir to ensure all ingredients are evenly combined.
Cover the slow cooker and set it to low for 6-8 hours or high for 3-4 hours. This slow cooking process allows the flavors to meld and develop beautifully.
Once cooking time is complete, taste your chili and adjust the seasoning with more salt, pepper, or spices if desired.
Notes
Serve with fresh cilantro and shredded cheese. Great with cornbread or tortilla chips.