"French Onion Salisbury Steak is a delicious take on a classic dinner recipe! This comfort food is so easy to make and has the most amazing savory gravy!..."
INGREDIENTS
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5 Tablespoons Butter
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2 Medium Yellow Onions, (Thinly Sliced)
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1 Large Egg
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2 Tablespoons Worcestershire Sauce (Divided)
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2 1/4 Cups Beef Broth, (Divided)
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1 1/2 Pounds Lean Ground Beef
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1/3 Cup Panko Breadcrumbs
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2 teaspoons Italian Seasoning
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2 teaspoons garlic powder
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Salt & Pepper, (To Taste)
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1/3 Cup Flour
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8 Slices Provolone Cheese
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1/2 Cup Shredded Parmesan Cheese