Unless they have chosen a vegetarian way of life, some people won't let anything green cross their lips. An easy way to see some of the magnificent things that can be done with vegetables is at the lunch buffet ($6.95 weekdays, $8.95 weekends) at Madras Pavilion. This vegetarian-only South Indian restaurant makes lentils lovable and beans bearable for even the die-hard meat-and-potatoes fan. Dishes change daily on the buffet but include such staples as basmati rice pulau, lentils in one form or other, various curries with potatoes, cauliflower and other veggies, a delicious paneer and chickpeas cooked in traditional spices. Favorite picks from the menu include a crispy, flaky samosa ($2.29) -- a kind of pastry pocket filled with a vegetable-potato mixture -- and various dosas ($5.99 to $6.99) which are thin, light crepes made from rice and lentil flour and filled with delectable ingredients, served with sambal, a spicy dipping sauce, and chutney.