Preheat oven to 350oF, prepare pans. Blend the margarine & sugar & beat in the eggs & yoghurt & milk. Fold in the chopped strawberries, lemon juice & rind & very carefully fold in the flour to avoid squashing the fruit. Spoon into Muffin cases and bake for about 20 mins, longer if frozen fruit is used. Variations: Any fresh berry fruit may be substituted for the strawberries (raspberries, blackberries, blackcurrants, elderberries or blueberries). Adapted and TESTED by Anja: Extremely good! One of my favourites. Tried it with strawberries and blackberries both work well. Leave out the Lemon if using tart fruit such as blackberries.