Cottage Pie with Potato Crust Recipe

Name: Cottage Pie with Potato Crust Recipe
Cook time: 1 h
Total time: 1 h
Cuisine: European
Ingredients: 1 1/2 pounds ground round; 1 cup chopped onion; 1⁄2 (8-oz.) pkg. fresh mushrooms, sliced; 1 garlic clove, minced; 1 cup frozen peas, thawed; 4 teaspoons beef bouillon granules; 1/2 teaspoon salt; 1/2 teaspoon dried thyme; 1/4 teaspoon freshly ground pepper; 1 tablespoon all-purpose flour; 1 (14 1⁄2-oz.) can stewed tomatoes; 1 bay leaf; 2 tablespoons red wine vinegar; 1 (24-oz.) container frozen mashed potatoes