Whoever wrote that should try these:
4 to 5 Portobello Mushrooms, peeled and the stems trimmed.
1/4 cup each of chopped bacon, spring onions, red capsicum.
2 tbls chopped fresh herbs, I used parsley, garlic chives and thyme.
2 cups fresh wholemeal breadcrumbs.
1 beaten egg.
Sauté the bacon, spring onions and capsicum, add herbs and cool. Mix in breadcrumbs and beaten egg and fill the mushrooms. Drizzle with a little olive oil and bake for about 15 to 20 mins in a moderate oven.
If you left out the bacon and used cheese or cooked lentils this would make a great main course for a vegetarian