Salisbury Steak, Mashed Potatoes, and Peas

INGREDIENTS

• MEAT MIXTURE
• 1-1/2 pound Lean Ground Beef
• 1/2 cup Seasoned Breadcrumbs
• 2 teaspoons Dry Mustard
• 1 cube Beef Bouillon, Crumbed (or Powdered Beef Base)
• 4 dashes Worcestershire Sauce
• 1 Tablespoon Ketchup
• Salt And Pepper
• Gravy
• 1 whole Onion, Halved And Thinly Sliced (or Diced If You Prefer)
• 2 cups Beef Broth
• 4 dashes Worcestershire (additional)
• 1 Tablespoon Ketchup (additional)
• 1 teaspoon Kitchen Bouquet (optional)
• 1 teaspoon Corn Starch Mixed With A Little Beef Broth To Make A Thin Paste
• Salt And Pepper, to taste
• More Broth If Needed For Thinning
• Mashed Potatoes, For Serving
• Buttered Peas, For Serving
• 1 Tablespoon Olive Oil, For Frying
• 1 Tablespoon Butter, For Frying