VEGETARIAN POT PIE

Steps:

• Remove the puff pastry sheets from the freezer and let them thaw for 30 to 40 minutes.
• Preheat the oven to 400 degrees F. Line a baking sheet with parchment paper.
• Place one puff pastry sheet on a work surface dusted with flour and use a rolling pin to flatten out any creases. Whisk the egg with a splash of water. Cut the pastry into 4 to 6 square pieces, place on the prepared baking sheet and brush with egg wash. Bake until golden brown and puffed, about 10 minutes. Repeat with the second sheet.
• Meanwhile, in a large pot or Dutch oven over a medium-high heat, melt the butter and add the onion, celery, carrots, garlic, salt and pepper and cook for 8 to 10 minutes, stirring occasionally, to soften everything.
• Stir in the mushrooms, tarragon and thyme and cook until the mushrooms are almost halved in size, 5 to 6 minutes. Add the sweet potatoes and the 1 tablespoon flour and stir to combine. Stir in the broth and let simmer until the potatoes are tender, 8 to 10 minutes. Stir in the cream and peas and cook until the mixture is nicely thickened. Remove from the heat.
• For each serving, scoop 8 to 10 ounces of the creamy pot pie mixture into a large bowl or onto a plate and top with one of the baked puff pastry pieces.