Prepare your noodles according to the instructions on the package.
Next in a large skillet, melt the butter. Add the flour. Stir until the flour is dissolved into the butter. It will be thick. Be careful not to burn.
Add almond milk or cream and pumpkin. Simmer for about 5 minutes. Stirring often so as not to burn.
Add salt, pepper, garlic powder, and nutmeg and mix well.
Add noodles and simmer for 5 minutes.
Add cheese one at a time stirring to melt the cheese.
Turn the stove down to low and simmer until the cheese sauce thickens.