- STEP 1
Heat the oil in a frying pan and saute the onions until slightly golden.
- STEP 2
Break up the tuna in a bowl and stir into the onions.
- STEP 3
Saute the onions and tuna together for ten minutes. Make sure to stir so that the ingredients don't burn.
- STEP 4
Meanwhile toast the bread and spread with margarine.
- STEP 5
Divide the tuna mixture onto five pieces of toast and place the remaining five slices of toast on top.
- STEP 6
Cut in half and serve with a green salad.
- STEP 7
For the variation add the grated cheese at step 3 and allow to melt. Then continue the steps, this will give you tuna melts.