Heat a nonstick skillet over medium-high heat. Pat the halloumi dry with a paper towel. Add the olive oil to the skillet and cook halloumi on each side for about 2 minutes, just until it browns lightly and warms through.

Assemble the salad: place the couscous at the bottom of a bowl, season with salt, pepper, and lemon. On top of that add the tomatoes and cucumber the finish with with the grilled halloumi and hummus.