Get Ready: First, turn your oven on to 375°F. Then, grease a 9x9-inch baking pan so nothing sticks.
Cook Your Pasta: Boil pasta until it's al dente. Drain the water and immediately toss the hot pasta with 2 cups of fresh spinach.
Mix the Sauce: In a big bowl, mix together your 1 beaten egg, 1 cup pumpkin purée, 1 cup ricotta, 1 cup mozzarella, ½ cup Parmesan, ½ cup heavy cream, and ⅓ cup vegetable broth.
Add the Flavor: Now, stir in the 1 diced shallot, 2-3 minced garlic cloves, and all your seasonings until everything is combined.
Put it Together: Add your pasta and spinach to the bowl with the sauce. Gently stir it all up, then pour it into your pan.
Bake It: Bake for 15 minutes. You'll see the edges start to bubble. Then, sprinkle the last ½ cup of mozzarella on top.
Melt the Cheese: Put it back in the oven for another 5-10 minutes, just until the cheese is melted and looks delicious.
Let it cool and serve: Let the pasta cool for a few minutes before you dig in. It will be hot! ENJOY!