Toast pita bread until lightly browned
Spread 1-2 tablespoons of hummus on each pita half (don't spread hummus all the way to edge - leave a little space without hummus so you can pick it up)
Arrange veggies on each pita in a rainbow shape - start with placing tomato quarters on top of the rounded egg, next line up peppers below, line up cucumber quarters below, finally place radishes in a semi-circle
Serve immediately, best when eaten within an hour of preparing (otherwise may get soggy).