Lentil Shepherdless Pie - FINITE FOODIE

Ingredients

• 1 cup lentils ((dried))
• 2-1/2 cups water
• 2 pounds sweet potatoes ((about 2, 6-inch-long potatoes))
• water ((to cover potatoes by about 1 inch))
• 1/2 teaspoon salt
• 1/2 cup plain yogurt (or milk or half and half)
• 2 tablespoons butter
• 1 teaspoon curry powder
• 1 small onion
• 4 cloves garlic ((about 1 tablespoon, minced))
• 1 tablespoon high heat cooking oil (or ghee)
• 1/2 tablespoon curry powder
• 1/4 teaspoon ground black pepper
• 1 pinch red pepper flakes
• 1 cup frozen chopped spinach
• 1 cup grated cheese ((Cheddar, Monterey Jack, or similar))