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• 1 tablespoon olive oil
• 1 medium onion (chopped)
• 1 celery stalk (chopped)
• 5 medium carrots (chopped)
• ½ teaspoon fresh thyme
• 12 oz. mushrooms (washed and sliced)
• ½ teaspoon salt
• ¼ teaspoon black pepper
• 1 tablespoon minced garlic
• 1 ¼ cups vegetable stock
• 1 tablespoon cornstarch
• ¼ cup tomato sauce
• 1 tablespoon Worcestershire sauce
• 1 cup frozen peas
• 2 ½ cups mashed potatoes