Step 1

Heat gas or charcoal grill.

Step 2

Place large sheet of heavy-duty foil or double layer of regular foil on work surface. Rub foil with a little olive oil.

Step 3

Arrange slices of polenta in center of foil. Drizzle with olive oil; sprinkle with salt and pepper.

Step 4

In medium bowl, toss shrimp with melted butter, parsley, garlic and lemon juice. Sprinkle with salt, pepper and crushed red pepper flakes. Add shrimp on top of polenta, getting all the butter out of the bowl.

Step 5

Bring short ends of foil together, and fold twice to seal; fold in sides to seal, leaving room for steam.

Step 6

Place packets on grill over medium-high heat. Cover grill; cook 10 to 15 minutes or until shrimp are pink.

Step 7

Remove from grill; unwrap and top with additional fresh parsley and lemon wedges.