I improvised making my own Prawn toast , it was relatively quick and easy and I am pretty sure you could embellish it more than I could . I had my mine with pea and ham soup because I am as ever the culinary rebel and they do say rules are there to be broken but having said that Pineapple absolutely does not belong on pizza.
Now I know you're meant to use egg white but I didn't have any eggs
ready cooked chicken
I had no Spring either
Whizz the cooked prawns and cooked chicken pieces together with some pesto about 4 teaspoons of pesto .
Then spread on bread ( I don't cut off the crusts )
Then plonk in the oven for around 10 to 15 minutes at about 180c . Keep an eye on it.