Veggies.You can use other vegetables or whatever you have on hand, like mushrooms, zucchini, or corn. Vegetable broth. Use a low-sodium vegetable broth or a homemade vegetable stock.

Preheat oven to 400°F. Heat 2 tablespoons oil in a large skillet over medium-high. Add mushrooms; cook, stirring occasionally, until golden and tender, about 5 minutes.

Once cooked, transfer the vegetables to an oven-proof dish that will be used to cook the pie. This could be individual pots or one large baking container. Trending ...