If necessary, peel and devein the shrimp.
Dice the onion and slice the garlic. You can mince it if you want, but I like to use sliced in this recipe!
Dice the tomatoes and also dice the block of feta cheese into medium squares.
In a medium sauce-pot, add 2 tablespoon of olive oil over medium heat.
Once warm, add the onions and allow them to sweat until translucent. Then, add the garlic slices and stir to combine until fragrant.
Stir in the calabrian chili paste until thoroughly combined. Then, add the diced tomatoes.
Stir to combine and cook until the tomatoes begin to break down. Keep over medium-low heat while cooking the shrimp.
In a separate pan, preferably non-stick, add the remaining 2 tablespoon of olive oil.
Heat over medium to high heat, then add the shrimp once hot. Season with salt and pepper and continue to saute until the shrimp are pink and cooked about 80% of the way through.
To the still hot pan, add the white wine or Ouzo and toss until it is nearly evaporated.
Then, add the tomato sauce from the other pot and toss to combine.
Once combined, sprinkle the cubed feta across the pan. Cover with a lid and let it steam on low heat until the feta is warmed through and slightly softened.
Scoop out the amount you wish to serve and serve hot in a bowl. Garnish with fresh chopped parsley and more fresh cracked pepper and, if necessary, more salt.