Dinner Tonight: Cauliflower and Sweet Potatoes in Spicy Tomato Sauce with Cashews Recipe

Name: Dinner Tonight: Cauliflower and Sweet Potatoes in Spicy Tomato Sauce with Cashews Recipe
Ingredients: 2 tablespoons canola oil; 1/2 cup unsalted raw cashews; 1 1/2 teaspoons cumin seeds; 1 teaspoon mustard seeds; 1 cup chopped onion; 4 teaspoons peeled, finely chopped fresh ginger; 1 14-ounce can diced tomatoes with juices; 1 Serrano pepper, stemmed, seeded, and quartered; 1 head cauliflower, stems removed and cut into 1-inch florets; 1 pound sweet potatoes, peeled and chopped into 1-inch chunks; 1/4 cup water; 1 teaspoon kosher salt; 1 cup frozen peas; handful cilantro