Pineapple

This is one of the easiest things to make on your grill, according to Jessica in the Kitchen. Simply slice the pineapple into one-inch pieces and grill on high heat for three minutes on each side. She suggests serving in a salad, in homemade salsa, or as a sweet burger topper.
Watermelon

Is there anything that screams summer more than eating watermelon at a barbecue? Well, maybe putting watermelon on the barbecue. The Food Network’s Alton Brown suggests treating cut watermelon squares like fish or steak: Blot them with a paper towel to remove moisture and brush with oil before grilling.
RELATED: 12 Simple Watermelon Recipes for Sweet Summer Bliss
Green Beans

While you don’t need a grill basket to make these, Michael Ruhlman says it makes the process a whole lot easier. Toss the beans with olive oil and minced garlic before putting on the grill. To turn up the heat flavor-wise, try adding dried red chili flakes.
Avocado

The key to making Instagram’s favorite fruit even more picture perfect? Add grill marks. Plus, it’ll give the avocado a whole new delicious smoky flavor. Avocados stick to the grill pretty easily, so Mississippi Kitchen suggests removing them with a spatula instead of tongs to keep the charred look in tact.
RELATED: 7 Avocado Recipes That Have Nothing to Do With Toast or Tacos
Romaine

Amanda Paa of Heartbeet Kitchen says this technique could be just the thing to convert any salad naysayers at your next barbeque. Slice the head of lettuce lengthwise to keep the leaves connected. Brush with olive, sprinkle with salt, and grill for about five minutes flipping halfway. To really make the flavors pop, drizzle with lemon juice.
Cauliflower

This veggie can serve as a side or be the star of a plant-based party spread. Cut the cauliflower into “steaks” and brush with olive oil and salt before popping on the grill. Try Well Plated’s method and add a little bit of honey or agave to each side for nice caramelization.
And after you dig in, try these tips to clean your grill without worrying about the dangers of using a wire brush.