Heat 1/2 tablespoon oil in a large heavy frying pan, add the ground turkey and season with salt and pepper.
Add fully cooked turkey to the crockpot.
Add the remaining 1/2 tablespoon oil to the frying pan, then add the onion and bell pepper and cook about 3 minutes, until the onion and pepper is just starting to soften.
Add seasonings and diced jalapenos and cook a couple of minutes more.
Put the onion mixture into the crockpot, then deglaze the pan with the beef broth and add that to the crockpot.
Add beans, pumpkin and tomatoes to the crockpot and stir to blend all the ingredients.
Cook on high for 4-6 hours (or on low for 8-10 hours).
Serve hot, topped with your desired toppings.