One way you can make a difference on Earth Day: Volunteer a few hours to pick up trash and plant trees.

One way you can make a difference on Earth Day: Volunteer a few hours to pick up trash and plant trees.

Another way: Eat food that's organic, locally sourced and vegetarian. You'll find several options for doing just that at this year's Earth Day Columbus Celebration, scheduled for Saturday at Columbus Commons.

Here are the food vendors to seek out and what to order.

The Coop: This chicken-and-egg-centered truck stands out above the steadily growing ranks of food trucks thanks to fine dining-quality food. Chef Angela Theado spent time in the kitchen at Alana's and sources her ingredients from Central Ohio merchants like North Market Poultry and Game.

The menu changes daily, but a French Omelette Sandwich is a frequent staple. It's a perfectly cooked, folded cheese omelet served on Texas toast with various sauces and veggies.

Earth's Crust: This food cart is coming out of winter hibernation for the first time on Earth Day, and it'll be unveiling some new pizzas. I loved the Ohio Cheese Pizza with roasted veggies at last year's ComFest. It's a grilled pie on a great, handmade whole-grain crust that tastes almost like a cross between a whole wheat pita and buttered popcorn.

Street Thyme: This new-to-the-scene truck is getting lots of buzz for its custom-ground, Midwest-raised beef burgers. On Earth Day, though, try the High Street Herbivore, a housemade veggie burger topped with marinated tomatoes, sliced onion, arugula and thyme aioli.

Pitabilities: Most of the thick, soft grilled pitas on the menu here are stuffed with meats, but the Veggie Pita is delicious, too. It's filled with garlic hummus, mozzarella cheese, grilled mushrooms and onions, lettuce, tomato, black olives, cucumbers and banana peppers. Get some deep-fried pita chips and some more of that garlic hummus on the side.

Shelley Mann is the editor of Crave, Columbus' dining magazine. Keep up with her at