Ultimate Comforting Dinner

Ingredients

• 1 1/2 pounds red potatoes, cut into 1 1/2-inch pieces
• 1 pound ground beef
• 1/2 pound fresh mushrooms, sliced
• 1 medium onion, halved and sliced
• 3 tablespoons all-purpose flour
• 3/4 teaspoon pepper, divided
• 1/2 teaspoon salt, divided
• 1 (14.5-ounce) can beef broth
• 2 tablespoons butter, softened
• 1/2 cup half-and-half
• 1/2 cup crispy fried onions