does anyone have a recipe for a good vegetarian curry??

This looks sort of close: http://allrecipes.com/Recipe/Quick-Vegetable-Curry/Detail.aspx . You could replace the potatoes with sweet potatoes and the spices with curry powder. I have a pretty good vegetable curry recipe, but it doesn't contain any of the ingredients you mentioned, except onion.

This one's really good. And super easy.
RED LENTIL CURRY
1/2cup red lentils
1/4 large onion, diced
3/4 tsp olive oil
1 1/2 tsp curry paste
3/4 tsp curry powder (If you're using a hot paste you can omit this powder)
1/4 tsp turmeric
1/4 tsp ground cumin
1/4 tsp chili powder
1/4 tsp sugar
1/4 tsp minced garlic
1/4 tsp ginger root, minced
1/4 (14.25 oz) can tomato paste

Wash the lentils in cold water until the water runs clear. Then put the lentils into a pot with enough water to cover them. Simmer until tender, adding extra water if necessary)
While lentils are cooking, caramelize the onions in the oil. Add curry paste, curry powder, turmeric, cumin, chili powder, sugar, garlic and ginger. Cook over high heat stirring constantly for 1 to 2 minutes.
Stir in tomato paste reduce heat and simmer until lentils are ready.
Drain the lentils (they should have absorbed most of the water but you don't want it to be too sloppy) Mix the curry base into the lentils and serve immediately.

Make 2 servings at 192 calories. 2.6g fat 32.5g carbs 572mg sodium 11.3g fiber 12.1 g protein

This one's really good. And super easy.
RED LENTIL CURRY
1/2cup red lentils
1/4 large onion, diced
3/4 tsp olive oil
1 1/2 tsp curry paste
3/4 tsp curry powder (If you're using a hot paste you can omit this powder)
1/4 tsp turmeric
1/4 tsp ground cumin
1/4 tsp chili powder
1/4 tsp sugar
1/4 tsp minced garlic
1/4 tsp ginger root, minced
1/4 (14.25 oz) can tomato paste

Wash the lentils in cold water until the water runs clear. Then put the lentils into a pot with enough water to cover them. Simmer until tender, adding extra water if necessary)
While lentils are cooking, caramelize the onions in the oil. Add curry paste, curry powder, turmeric, cumin, chili powder, sugar, garlic and ginger. Cook over high heat stirring constantly for 1 to 2 minutes.
Stir in tomato paste reduce heat and simmer until lentils are ready.
Drain the lentils (they should have absorbed most of the water but you don't want it to be too sloppy) Mix the curry base into the lentils and serve immediately.

Make 2 servings at 192 calories. 2.6g fat 32.5g carbs 572mg sodium 11.3g fiber 12.1 g protein

I made this curry as a side dish the day before yesterday! It actually has a good smoky flavor, and I was really excited because it was the first time I'd ever cooked red split lentils properly. They usually come out mushy.