Stuffed Meatloaf (aka "Polpettone") - The Recipe Wench

Ingredients

• 1 Pound ground sirloin
• 1 egg
• ¾ Cup grated parmesan
• ¼ Cup fresh minced Italian parsley
• 1 Teaspoon kosher salt
• ½ Teaspoon pepper
• 2 2-½ Cups bread crumbs (divided)
• ¾ Cup (approx.) milk (enough to make a soft, yet firm consistency)
• ¼ - ⅓ Pound thinly sliced deli ham (mortadella is another delicious option)
• 1 Generous cup shredded cheese such as provolone or munster (thinly sliced or finely cubed cheese is also ok)
• 2 hard-boiled eggs (finely chopped)
• non-stick spray such as Pam
• 2-4 Tablespoons olive oil
• 1 Cup thinly sliced onions
• 8 Ounces fresh mushrooms (cleaned and thinly sliced)
• 1-½ Cups vegetable, beef or chicken broth
• crushed red pepper to taste
• 1 Tablespoon cornstarch (for thickening sauce, if desired)