spam and scalloped potatoes

Ingredients

• 1 (340g) can SPAM® Classic, thinly sliced
• 3 tbsp all-purpose flour
• 3 tbsp butter or other fat
• 1/2 cup crisp buttered breadcrumbs
• 4 large potatoes, boiled and sliced
• 2 cups milk
• 1 tbsp fresh parsley, minced
• Pepper, to taste
• Salt, to taste
• 1 small onion, diced