1 small cucumber, peeled, halved lengthwise, seeded, and cut into 1/2-inch dice
1 large or 2 small radishes, halved and thinly sliced
2 whole-wheat pitas (6 inches each), top third cut off
Halve and pit avocado. With a spoon, scoop out avocado flesh, cut into chunks, and transfer to a medium bowl. Add orange juice, Tabasco sauce, and coriander; season with salt and pepper. Mix gently to combine.
Add tomatoes, cucumber, and radish. Combine, and divide mixture between 2 pitas. Serve immediately.