This isn’t a slow cooker recipe, but I love making vegetarian curry. I usually just make it “a dash of this, a pinch of that” and use yogurt instead of coconut milk. You can tweak a recipe like this a lot.
4 potatoes, peeled and cubed
2 tablespoons vegetable oil
1 yellow onion, diced
3 cloves garlic, minced
2 teaspoons ground cumin
1½ teaspoons cayenne pepper
4 teaspoons curry powder
4 teaspoons garam masala
1 (1 inch) piece fresh ginger root, peeled and minced
2 teaspoons salt
1 (14.5 ounce) can diced tomatoes
1 (15 ounce) can garbanzo beans (chickpeas), rinsed and drained
1 (15 ounce) can peas, drained
1 (14 ounce) can coconut milk
Directions
Place potatoes into a large pot and cover with salted water. Bring to a boil over high heat, then reduce heat to medium-low, cover, and simmer until just tender, about 15 minutes. Drain and allow to steam dry for a minute or two.
Meanwhile, heat the vegetable oil in a large skillet over medium heat. Stir in the onion and garlic; cook and stir until the onion has softened and turned translucent, about 5 minutes. Season with cumin, cayenne pepper, curry powder, garam masala, ginger, and salt; cook for 2 minutes more. Add the tomatoes, garbanzo beans, peas, and potatoes. Pour in the coconut milk, and bring to a simmer. Simmer 5 to 10 minutes before serving.
The important part is to start by frying the onions until they are soft. Eventually, everything cooks down and they form the base of the sauce. You can also use things like pumpkin, cauliflower, carrots, or sweet potato.