spinach & poblano pesto

This is not a traditional pesto by any means as Jim is allergic to nuts and I had no cheese in my house when I made it. HOWEVER, it turned out great and I've used it in almost everything I've made since that day. Pizza, lasagna, grilled cheese {see recipe}, scones {see recipe}, roasted potatoes, etc. I plan on always having some in my refrigerator for the rest of my life.

{purée}

1 large bunch of fresh spinach leaves
3 cloves garlic
I seeded poblano pepper
1/4 C green onion
1 shallot
2 T olive oil
1/4 t salt
1/4 t pepper
4-5 fresh basil leaves
a handful of oregano leaves
1 stem of rosemary sprigs