Garlic Shrimp in Coconut Milk, Tomatoes and Cilantro

lbs peeled and deviened jumbo shrimp (weight after peeled)

olive oil

red bell pepper, diced

scallions, thinly sliced, white and green parts separated

chopped cilantro

garlic, minced

kosher salt

crushed red pepper flakes (or to taste)

can diced tomatoes

can light coconut milk

lime, squeezed