Barbecued portobello mushrooms in a bun

Barbecued portobello mushrooms in a bun - The perfect vegetarian answer to a burger - portobello mushrooms, sprigs fresh rosemary, vine tomatoes, small lettuce, crusty rolls, red onion, clove garlic, olive oil, Wipe the mushrooms clean and remove the stalk. Peel and finely chop the onion. Peel and crush the garlic. Wash the rosemary sprigs [...]