4 large red onions
1 pound hot or sweet Italian sausage, casings removed
1 10-ounce can diced tomatoes
8 ounces cheddar cheese, shredded
Preheat your oven to 350 F.
Peel onions and trim the tips of the root ends so that the onions will stand upright when stuffed. Using a spoon, hollow out the onions, leaving a "bowl" that is two layers thick. Chop the scooped out onion flesh.
Heat a heavy skillet to medium-high on the stove top. Add sausage and cook until the meat is cooked through, about 10 minutes. Halfway through cooking the sausage add the chopped onion. Drain fat off of sausage and add tomatoes; stir to combine. Remove from heat. Let cool for a few minutes and stir in cheese.
Add 1/4 of the sausage mixture to each onion and place in a glass baking dish. Once all onions have been stuffed, bake for 45-60 minutes, or until the onions are fork-tender. Remove from heat and let cool for a few minutes before serving.