Fill a medium pot 3/4 of the way up with salted water; cover and heat to boiling on high. Wash and dry the fresh produce. Medium dice the zucchini. Halve the tomatoes. Halve, peel, and medium dice the onion. Peel 1 clove of garlic; using a zester or the small side of a box grater, finely grate into a paste.

Add the couscous to the pot of boiling water. Cook, stirring occasionally, 5 to 7 minutes, or until tender. Turn off the heat. Drain thoroughly and return to the pot. Cover to keep warm.

Meanwhile, in a medium pan (nonstick, if you have one), heat a drizzle of olive oil on medium-high until hot. Add the diced zucchini, halved tomatoes, and diced onion in an even layer. Cook, without stirring, 3 to 4 minutes, or until browned. Add the capers, garlic paste, and as much of the red pepper flakes as you'd like, depending on how spicy you'd like the dish to be; season with salt and pepper. Cook, stirring frequently, 1 to 2 minutes, or until the vegetables are softened. Transfer to the pot of cooked couscous; stir to combine. Taste, then season with salt and pepper if desired. Wipe out the pan.

Pat the shrimp dry with paper towels; place in a bowl. Season with salt, pepper, and enough of the spice blend to coat (you may have extra). Toss to coat. In the same pan, heat a drizzle of olive oil on medium-high until hot. Add the seasoned shrimp. Cook, stirring occasionally, 3 to 5 minutes, or until opaque and cooked through. Turn off the heat. Serve the finished couscous topped with the cooked shrimp. Garnish with the feta (crumbling before adding). Enjoy!