Yes you can grill lettuce
Grill it, dress it and WOW.
Simple to do and gives you a nice wedge presentation. Good alternative to regular salad in a bowl and this summer my go to.
Wash your lettuce and let it dry then cut it lengthwise leaving the end on or your lettuce will leaf and fall apart. Off to the grill to give it a little char (max 4 -5 min process flipping couple times). When done I make my own olive oil, lemon and dijon dressing. To top it my preference and always on hand tomatoes, red onion, feta cheese but you can do this any way you like.
Throw on your favorite dressing, candied or plain nuts, dried or fresh fruit, veggies of your choice and enjoy.