Frugal Friday: Vegetarian Curry Night

We love curries. At this time of year, we'll usually cook a curry once a week. Warm, fast, frugal and easy to freeze, they make the great lunches too. I try to cook at least two curries at the same time, because it feels decadent - and when you add raita, poppadums and chutney, it becomes a real feast.
This is my first entry for Frugal Fridays. According to the rules, a frugal friday entry should make a whole meal for at least 4 people, and cost around about $10. I costed this on Woolworths online, it came to fourteen dollars (AUD), and the mushrooms were disturbingly expensive. I buy my canned stuff on special (half the price) and my vegetables at the farmers market or Fyshwick wholesale markets - it really cost me around ten. So I'm hoping they'll let me stay. : )
(If somebody is feeling enthusiastic, do you want to price this out for me in the US? I'm just curious now...)
On to the recipes
Spinach Dhal
1 Tbsp olive oil
1 brown onion, finely chopped
6 small potatoes, quartered
1 tsp ground cumin
1 tsp ground coriander
2 Cups water
1 Tbsp tomato paste
1 400g can of brown lentils, drained
80g baby spinach
Heat oil in saucepan over medium heat. Add onion and potato and cook, stirring until onion is soft. Add spices and stir until fragrant.
Add water and tomato paste and bring to the boil. Reduce the heat and simmer for 10 minutes (or until the sauce is reduced by half). Add the lentils, stirring until heated through. Add the spinach and stir until its all wilted.
The other dishes were just plain rice and Mushroom Korma (from Domestic Goddess in Training). We also had shop bought poppadums - it makes me giggle when I put them in the microwave and watch them puff!