Pumpkin Chili with Beef, Peppers, and Olives

Name: Pumpkin Chili with Beef, Peppers, and Olives
Prep time: 15 min
Cook time: 1 h 30 min
Total time: 1 h 45 min
Cuisine: American, TexMex
Ingredients: 2 lbs. ground beef (see notes); 4 tsp. olive oil, divided; salt and fresh-ground black pepper to taste; 1 medium onion, chopped in half-inch pieces; 1 green bell pepper, chopped in half-inch pieces; 1 T minced garlic; 7 oz. can diced green chiles (see notes); 1 T Spike Seasoning (see notes); 1 T ground cumin; 1 T chili powder; 1 T dried cilantro (optional, but good if you have some); 1 tsp. dried Mexican oregano (see notes); 2 14 oz. cans beef broth; 2 14.5 oz cans petite dice tomatoes; 1 15 oz. can pure pumpkin puree; 1 6 oz. can black olives, drained and cut in half lengthwise; 1/2 cup finely chopped cilantro, plus more to add at the table (optional); 1/2 cup thinly sliced green onion, plus more to add at the table; 2 T Green Tabasco Sauce (Use more or less to taste.)