My one year old loves pasta and he loves to man the fork on his own. It's great except veggies like spinach never makes it in the fork. So I stuffed them all in for a messy-free meal.
Saute all ingredients but the cheese. Let it cook through for 2-3 mins. I like the onions to have a little crunch left.
Transfer to a bowl, add the cheese in and blend.
Pipe the filling into the penne.
Pour some melted butter on top.
Lick your fingers.