Preheat your oven to 350 degrees and line a baking sheet with foil, then give it a light coat of nonstick spray. Gently break off the stems from each mushroom and set both the caps and stems aside separately, since you'll need the stems for the filling in the next step.
Add butter and garlic to a skillet over medium heat, then dice up the mushroom stems and toss them in too. Let everything cook until softened, then lower the heat and stir in your cream cheese, Parmesan, and spices until the mixture turns smooth and fully melted.
Use a small spoon to fill each mushroom cap with the warm cheese mixture, pressing it in gently without overpacking it. Place each stuffed mushroom cap-side down onto your prepared baking sheet so they're ready for wrapping.
Cut your crescent roll dough into thin strips using a pizza cutter, about ⅛ inch wide. Wrap the strips around each mushroom in a crisscross pattern, leaving a small gap near the top for the candy eyes to peek through later.
Slide the tray into the oven and bake for 14 to 16 minutes, until the crescent strips turn a light golden brown. Let the mushrooms cool for a couple of minutes, then press the candy eyes into the gaps before serving warm.