Slow Cooker Potato Curry

Ingredients

• 1 Tbsp oil
• 1 large onion, finely chopped
• 1 (15 oz) can diced tomatoes
• 4 tsp curry powder
• 1 1/2 tsp garam masala
• 1/2 tsp salt
• 3 cloves garlic, minced
• 1 1/2 lbs little potatoes
• 1 serrano chili, chopped (seeded for less spice)
• 1 lb cauliflower, cut into 1-inch florets
• 1-inch knob fresh ginger, minced
• 1 Tbsp tomato paste
• 2 cups vegetable broth
• 1 cup water
• 1 (15 oz) can chickpeas, rinsed
• 3/4 cup canned coconut milk
• 1 1/2 cups frozen peas, thawed
• 1 lime, juiced