Add the cauliflower to a food processor fitted with an 'S' blade. Secure the lid and process briefly, just until the cauliflower looks crumbly and resembles rice. Set it aside.: The smell at this stage is mild, a fresh green scent with a faint cruciferous note, and the sound of the processor pulsing is a quick, rhythmic staccato. You want to aim for tiny, rice like grains that hold their shape, not a paste, because intact bits will give you the pleasant chew and a surface that catches dressing. A common error is over processing, which makes a wet, mushy texture that does not resemble tabbouleh; pulse in short bursts, checking after each set. If you notice any large florets, give one or two additional short pulses. When you scoop a spoonful it should feel airy and separate rather than clumping together, and this texture will allow the lemon juice and olive oil to distribute evenly across many small pieces. If your processor is small, work in batches so each piece gets uniform processing. Let the riced cauliflower rest briefly in a bowl so any large bits settle while you prepare the dressing.
In a large bowl, combine the olive oil, lemon juice, garlic, and salt. Then pour in the riced cauliflower, cucumber, tomato, green onion, parsley, and fresh mint. Stir well so everything is well coated in the dressing.: Right away you will notice the aroma of garlic and citrus as the dressing emulsifies lightly when whisked. The visual is gorgeous, with green herbs and colorful vegetables contrasted against the pale riced cauliflower . Use a large bowl so you can toss gently without bruising the herbs. Stirring should feel smooth, and you should see tiny droplets of dressing clinging to the grains of cauliflower , which indicates good coating. A typical misstep here is over mixing aggressively, which can tear the herbs and release excess moisture; fold gently so everything remains distinct. If the mixture seems dry, add a splash more extra virgin olive oil or a squeeze of lemon juice , tasting as you go. The salad should look glossy but not drenched, and the herbs should remain lively and green rather than limp.
Taste the mixture and season with additional salt or lemon juice, as needed. (I usually add another 1/2 teaspoon of salt, but this will vary depending on the size of your veggies.): This tasting moment is where the salad comes together, and you should focus on balance, not just saltiness. The first thing to notice is acidity from the lemon juice , then the savory lift from the garlic and salt , and finally the freshness of the herbs. Adjust in small increments, letting the flavors settle a few moments before tasting again because the herbs will continue to infuse. One mistake is oversalting in a single addition; instead, add small amounts and re taste. If the salad lacks brightness, add a tiny squeeze more lemon juice ; if it tastes flat, a pinch more salt will sharpen it. The goal is lively, layered flavor where no single note dominates.
Serve this salad right away, or let it marinate in an airtight container in the fridge. It will keep well for up to 5 days in the fridge and pairs perfectly with hummus, falafel, and more.: When served immediately the texture is crisp and the herbs are vivid, with a fresh citrus perfume. If you let it rest, the flavors integrate and the cauliflower softens slightly as it absorbs the dressing, producing a more cohesive bite. Storing in an airtight container preserves brightness, but be aware of odor transfer in the fridge as raw cauliflower can take on strong aromas; wrap tightly. A common oversight is leaving it at room temperature for extended periods; keep it chilled if not eaten soon. When reheating is not needed, serve cold or at a gentle room temperature so the herbal notes remain pronounced. The salad pairs wonderfully with Mediterranean dishes and makes a lovely, healthy make ahead option for meals throughout the week.