Thai Green Curry Lentil and Potato Stew

adapted from a recipe from the trader joes vegetarian cookbook (http://www.amazon.com/Love-Trader-Joes-Vegetarian-Cookbook/dp/1612431097/ref=cm_cr_pr_product_top)

(Note: The original recipe called for 1/2 package of lentils, so I doubled it in order to use the whole package since I didn't have a plan for the rest and didn't want to waste them)

Ingredients:
2 small yellow onions
olive oil
1-2 tsp minced garlic (jarred)
1 package trader joe's cooked lentils
2 medium sized potatoes
2 jars trader joe's thai green curry simmer sauce
4 medium sized tomatoes

for serving:
Trader joe's frozen thai jasmine rice (comes in a box with 3 individual bags of rice)

Directions:
Chop onions. In a large pan, cook onions and garlic in olive oil for about 5 minutes, or until onions start becoming translucent. Peel and chop the potatoes into 1/2 inch cubes. Microwave the potatoes until they are starting to get soft (this is necessary or else you will be simmering FOR EVER). Add potatoes, lentils, and simmer sauce to the pan. Bring to a simmer, cover, and simmer for about 15 minutes, or until potatoes are soft enough to eat. While simmering, chop tomatoes (remove the seeds). Add tomatoes to the pan and simmer (covered) for 5 more minutes. Serve with rice.