First, boil water in a large pot. When the water is boiling, add 1 tsp of coarse salt. Then add the pasta, stir and cook until tender
While the pasta is cooking, make the sauce. Heat up a pan and add 1 tbsp of olive oil.
Add the chopped onion, pinch of salt and sautee until soft
Add the butter and carrots, stir and cook for 2 minutes
Add the flour and stir. Grate the garlic clove into the pan. Stir and cook for one minute
Pour in the milk, add the chili flakes, 1/4 tsp ground black pepper and 1/4 tsp salt. Grate a few pinches of nutmeg into the pan
Add the corn and peas. Stir and bring to a boil
Drain the pasta whenever it is ready
After the sauce comes to a boil, cook for another minute until the sauce is slightly thick
Stir in the cream cheese or parmesan if using. Taste and add more salt or pepper if you wish
Add the drained pasta and coat with the sauce