Melt the butter over medium heat and add the meat. Fry until browned all over.
STEP 2
Add the pesto and mix well. At this point you may add the spinach in the quantity you wish if you choose to.
STEP 3
Add 2 or 3 tbs double cream depending on your preference. Add the chicken stock as well and give it a good stir. Taste and adjust the salt and add pepper if desired.
STEP 4
Add to the cooked pasta and mix well. You can add cheese either before adding the mix to the pasta or after, it's up to you.