After gathering all ingredients, break down and boil the pasta in a pot of water.
While boiling the pasta, mince the garlic ( about 2 cloves) and measure out 1/2 tsp.
Next, grab a handful of baby spinach and chop finely. Don't forget to wash your vegetables.
After chopping the spinach, melt the butter in a small pot. Whisk in the flour until smooth and cook for 1 minute.
Add in the milk.
Cook over medium heat for 5- 10 minutes and stir often until thickened.
Stir in the salt once the mixture has thickened.
Don't forget to check on your pasta!
Add in 1/2 tsp of pesto into the mixture.
Add in the garlic.
Add in the spinach.
Finally, add in the Parmesan cheese. Mix well and cook for 1-2 minutes until the flavors have combined.
When sauce is complete and pasta is cooked through, mix together in a bowl