1) In a large bowl, whisk together the eggs, milk and vanilla. Set aside.
2) Place one tablespoon of ricotta in the centre of four of the pieces of bread and spread around slightly. Top with about six slices of strawberries and a teaspoon of chocolate chips. Cover each with another piece of bread to make a "sandwich."
3) Spray a large nonstick skillet or griddle with cooking spray and preheat. Carefully dip each of the sandwiches into the egg mixture until completely moistened. Then place on the skillet and cook over a medium heat for three to four minutes per side, until the outside is golden brown and the center is warm and chocolate is melted.
4) Transfer to serving places. Top with remaining strawberries and sprinkle with icing sugar.