01 - Pour baked beans into a small saucepan and warm gently over medium-low heat, stirring occasionally, until heated through without boiling, about 5 to 7 minutes.
02 - Toast bread slices in a toaster or under a broiler until golden brown and crisp.
03 - If desired, spread unsalted butter evenly over the hot toast slices.
04 - Arrange toast on plates and spoon the hot baked beans evenly over each slice.
05 - Sprinkle chopped fresh parsley and freshly ground black pepper over the top as desired, then serve immediately.