Blackened Shrimp, Bacon, and Green Onion Cast Iron Skillet Quesadilla

slices bacon

butter, divided

small shrimp, peeled, deveined, tails removed, and patted dry with a paper towel

Blackened seasoning

burrito size flour tortillas (at least as big as your cast iron skillet)

shredded Monterey jack cheese

green onions, chopped