Brown ground beef with shallot in a large skillet over medium-high heat. Drain then return to the skillet. Add taco seasoning, salsa, and chicken broth then bring to a boil. Stir in rice then place a lid on top and reduce heat to low. Simmer for 15-20 minutes or until rice is tender then remove from heat and stir in cheddar cheese until melted. Place lid back on the skillet then let sit for 5 minutes before serving with toppings.