Gujarati Eggplant and Sweet Potato "Lasagna" With Kadi Sauce Recipe | Epicurious

Ingredients

• A Tomato Masala
• 1 pound sweet potatoes, peeled
• 1/2 pound eggplant, unpeeled, ends trimmed
• 3/4 pound zucchini, ends trimmed
• 1/2 large red bell pepper (4 ounces)
• 1/2 large green bell pepper (4 ounces)
• 1/4 cup canola oil
• 1/2 cup chopped unsalted roasted peanuts
• 1 teaspoon salt
• 1 cup gram flour (besan)
• 3 cups water
• 1 teaspoon finely chopped fresh ginger
• 1/2 teaspoon finely chopped fresh Thai green chile
• 1/2 teaspoon ground turmeric
• 1 tablespoon whole-milk yogurt
• 2 teaspoons salt
• 1/4 teaspoon citric acid powder (see Note)
• Cooking spray
• Kadi Sauce, for serving