| 2 | | Stale hamburger buns/rolls; (I used wholewheat) |
| 2 | lg | Mushrooms; chopped . I used large, brown, flat ones, (I don't know what they are called in America) (up to 3) |
| 1 | sm | Onion; chopped finely |
| 3 | | Or 4 fresh basil leaves; chopped finely OR 2 or 3 sprigs of chopped thyme, (I use a pair of children's paper scissors, with the round blunt ends, roll the leaves into a tight wad, and then chop it up) |
| 2 | | Cloves crushed garlic |
| 1/2 | c | Soy milk |
| 1/2 | ts | Mustard; (I used Coleman's Hot English powdered mustard and mixed it with a little water) |
| | Seasoning to taste |
