Lentil and Spinach Soup

Ingredients

• 2 teaspoons cumin seeds
• 1 teaspoon mustard seeds
• 1 teaspoon coriander seeds
• 1/2 teaspoon nigella seeds
• 3 tablespoons coconut oil
• 1 teaspoon ground turmeric
• 1 teaspoon garam masala
• 1 teaspoon curry powder
• 1/2 teaspoon cayenne, optional
• 1 large onion, diced
• 1 medium jalapeño pepper, thinly sliced
• Kosher salt
• 5 garlic cloves, minced
• 1 cup diced canned tomatoes
• 1 1/2 tablespoons minced ginger or ginger juice
• 6 cups boiling water
• 1 cup red lentils, rinsed and drained
• 1 5-ounce package baby spinach
• Freshly-squeezed lime juice, to taste