Cook pasta according to the package directions, omitting salt and fat.
Drain and keep warm.
Heat 1 tablespoon oil in a large nonstick skillet over medium-high heat.
Sprinkle shrimp with salt; add shrimp to pan.
Cook 2 minutes on each side or until shrimp are done.
Transfer shrimp to a bowl.
Heat remaining 1 tablespoon oil in pan.
Add onion, minced garlic, basil, and crushed red pepper to pan; sauté 1 minute.
Add tomato paste and tomatoes; bring to a boil.
Cook 3 minutes or just until sauce begins to thicken.
Return shrimp to pan; cook 1 minute or until thoroughly heated.
Add capers, kalamata olives, and parsley to the pan, stirring well to combine.
Serve over pasta.