This is a recipe I adapted to be freezer-friendly. If you want to make it tonight, simply have your shrimp thawed. It is pretty spicy, but to cut down on the spice do not cook in the juices. My kids loved it!
1 lb frozen uncooked cleaned large shrimp
1 tbsp Cajun seasoning
1/4 cup Italian dressing
2 cloves garlic, minced (~2 tsp)
1 tbsp chopped fresh parsley (for after you cook)
Combine shrimp, dressing, seasoning, and garlic in a freezer bag. Remove the air, seal, and freeze.
To Cook: Thaw in refrigerator overnight. Heat skillet over medium-high heat. Add ~1 tbsp olive oil and butter. Add shrimp and cook 2-3 minutes until done. Top with parsley, if desired.