Yes, if you don’t want to use fresh shrimp (or can’t find any that look good at the grocery store), you can use frozen shrimp. Save yourself the trouble and go ahead and get the peeled and deveined frozen shrimp. Let the shrimp thaw completely inside a colander, so the water drains off, and they aren’t sitting in it. Then you’ll just want to toss them in the sauce with the asparagus until heated through.