Stuffed Tomatoes with Sausage, Cheese, and Basil

["Preheat oven to 425 degrees F.", "Core tomatoes with a paring knife and cut a larger 2""-wide circle on top of each.", "Using a small spoon, scoop out insides.", "Place tomatoes upside-down on a paper towel-lined baking sheet and let drain while you prep the filling.", "In a large skillet, heat olive oil over medium-high heat.", "Add shallot and garlic and saute until fragrant, 1 to 2 minutes.", "Add sausage, breaking it up with a wooden spoon, and cook until browned and cooked through, 8 minutes.", "Using a slotted spoon, remove sausage mixture to a large paper towel-lined bowl to soak up grease.", "Discard paper towel and stir in basil, Panko, fontina, and Parmesan.", "Place tomatoes in a small baking dish and season insides with salt and pepper.Stuff tomatoes with sausage mixture (filling will shrink as you cook, so be sure to mound tops until they look like theyre overflowing).", "Bake until cheese is melting and tops are golden,15 to 20 minutes.", "Let cool 5 to10 minutes and serve with a simple green salad."]