Vegetarian Shepherd's Pie - Hunger Task Force

Ingredients

• 1 cup cooked lentils (optional)
• 1 tablespoon olive oil
• 1/2 tablespoon minced garlic
• 1/2 large yellow onion (diced)
• 16 ounces frozen peas and carrots
• 2 ribs celery (diced)
• 8 ounces button mushrooms (roughly chopped)
• 1 tablespoon tomato paste
• ¾ teaspoon salt
• 1 teaspoon dried thyme
• ½ teaspoon paprika
• Freshly cracked black pepper
• 1 tablespoon flour
• 1 cup vegetable stock
• 4 cups mashed potatoes