How to Make It
Combine first 7 ingredients.
Heat oil in a large nonstick skillet over medium-high heat. Sprinkle tuna with salt and pepper. Add fish to pan; cook 2 minutes on each side or until desired degree of doneness. Remove fish from pan; keep warm.
Add tomato mixture to pan; cook until thoroughly heated (about 2 minutes). Stir in parsley. Pour sauce over fish.