Cook pasta as per the instructions on the packet. Cook them al dente.
Heat olive oil to a pan, fry the pine nuts till they turn light golden.
Add the onions and jalapenos to the pan and cook till the onions turn translucent.
Now add the spinach and cook till they soften. This could take 2 minutes.
Add the pesto and white sauce. Give it a mix and cook for 2-3 minutes. Add half a cup of milk if you feel the sauce gets too dry.
Next add the seasonings - red pepper flakes and Italian seasoning. Mix.
Add the cooked pasta. Mix.
Then add the Parmesan cheese and cracked black pepper. Mix it all together. Check and add salt if needed. Take it off the flame.
Grease a baking dish with butter.
Spread the cooked creamy pesto pasta over it. Pour half a cup of milk over it if you feel the pasta looks dry.
Top it with half of the mozzarella cheese and one broken burrata cheese. Bake it in the oven at 350 degrees F for 20 minutes or until edges are golden brown and cheese is bubbly. Chef Tip - There is no need to cover it but if you want, cover it with an aluminum foil before putting it in the oven.
Remove from oven and set your oven to broil. Broil the pasta for an additional 1-2 minutes or so to get the top extra golden. Take it out of the oven and serve.
Repeat the same steps again to make the second batch.