Easy Vegetarian Cottage Pie for a Hearty Dish

This is a quick and easy dish that captures the essence of the meat-based original. In our home it is often made on the weekend for a few days of quick suppers or portable lunches. Ingredients 2 Tablespoons olive oil 1 Large yellow onion, diced 2 Medium carrots, sliced 3 Medium crimini mushrooms 2 Cups