Heat 1 teaspoon oil in medium stockpot over medium heat. Add ground beef and crumble. Add onion and garlic and cook until the onion has softened and beef has browned. Drain excess oil.
Add chili powder, cumin, coriander, crushed tomatoes, and beef broth. Bring to a boil. Reduce heat to low and simmer for 1 hour or until almost all of the liquid has evaporated, stirring occasionally. Season with salt and pepper.
Heat tater tots according to directions on package. Top with chili and cheese. Serve.
Notes
The heat from the chili should melt the cheese but if it doesn't, pop the chili cheese tater tots in the oven at 350 degrees F for 1-2 minutes or until the cheese melts.