Creamy Pesto Pasta with Grilled Chicken & Caramelized Onion: The Best Ever!

Creamy Pesto Pasta With Chicken
Ingredients:
2 chicken breast, pasture raised if possible, pounded or butterflied to ½ inch thick
Garlic powder
Salt
Poultry seasoning
1 large yellow onion, cut in half and sliced
1 bunch of organic spinach leaves
Olive oil
8 oz. of pasta, can be gluten free, or regular, my favorite is gluten free penne pasta

Creamy Basil Sauce
2 cups or 60 g. Fresh basil leaves, rinsed and dried
⅓ cup raw pine nuts
2 tsp. Lemon juice
¾ cup frozen sweet peas
½ cup heavy whipping cream, organic
⅓ cup grated parmesan cheese, fresh preferred, can use pecorino romano
1- 2 large cloves garlic, chopped
¼ - ½ cup of extra virgin olive oil