Place shrimp in a medium bowl, sprinkle with salt and crushed red pepper flakes. Stir to combine then set aside. Place a large skillet over medium-high heat and add olive oil. When oil is hot, add shrimp then cook for 2–3 minutes or just until shrimp turn pink and are barely cooked through.
Transfer shrimp from skillet to a plate and set aside. Add sliced onion and pepper to remaining oil in skillet then cook until onion is translucent and peppers become tender—about 3–4 minutes. Add a bit more oil to the skillet if needed.
Add garlic, cook for 1 additional minute then add wine. Bring wine to a boil, allowing the ingredients to bubble for 2 minutes. Add entire can of diced tomatoes including juice, oregano and basil. Bring liquid to a bubble then reduce heat to medium-low and simmer for 8–10 minutes until thickened slightly.
Add tomato paste, stirring to incorporate, then add shrimp back into the sauce. Allow shrimp to reheat then sprinkle with chopped parsley and season to taste with salt and pepper. If sauce becomes too thick, just add a bit of water, thinning to desired consistency. Serve immediately spooned over pasta.
One Last Thing
Shrimp are delicious and they cook in a snap. They also defrost quickly, so you can go from frozen to cooked in no time.