Grilled Portobello Mushrooms: From TIQA for Maine Restaurant Week March 8, 2018Recipesblog, Catching Health, Maine, Maine Restaurant Week, portobello mushroom, recipe, Tiqa By Diane Atwood Join the celebration! Maine Restaurant Week ends Monday, March 12th. You owe it to yourself to try something new — a new restaurant, a new menu. Or try a new recipe. Have some fun!