Step 1: Grill fish fingers.
Step 2: Cut, boil and mash potatoes using a knob of butter.
Step 3: Place the grilled fish fingers into an ovenproof dish then top with baked beans.
Step 4: Spread the mashed potatoes over the bean mixture then sprinkle over a load of grated cheese.
Step 5: Bake at gas mark 6/200 degrees till golden-brown.