Pre-heat the oven to 425 degrees. Place the tater tots on a baking sheet and cook until warm and crispy, about 20 minutes.
While the tater tots cook, place the ground beef in a large cast iron or cast iron ceramic pot over medium-high heat.
Break up the meat with a wooden spoon and cook until brown. Remove the meat from the pan and drain most of the fat, leaving about 1 tbsp.
Return the pot to medium-high heat. Add the onions and cook until translucent, add the garlic and the beef to the pan. Cook for 1 minute before adding all three cans of beans, crushed tomatoes and tomato paste. Season with salt and pepper.
Add the spices and the vegetable broth. Stir to combine, then continue to cook on medium-high until mixture comes to a boil. Reduce heat to low and cover. Cook for 20 more minutes.
Pour the chili into two 9 inch round pans or one 9 X 17 baking dish. Cover the top completely with the tater tots.
Turn the broiler on high and cook for until tots turn golden brown. Remove from oven and serve with cheese, green onions and cilantro.