Wash and dry the spinach well. Peel and slice the banana. Cut the pineapple into chunks and remove any tough core. Dice the mango flesh away from the pit. For the best thick, creamy texture, freeze at least part of the banana, pineapple, and mango until firm. Use ripe, sweet fruit. Unripe pineapple or mango will make the smoothie more sour, fibrous, and less rounded in flavor. That genuine ripeness carries directly through into the finished smoothie's own flavour — underripe fruit simply doesn't offer the same natural sweetness or smooth, less fibrous texture ripe fruit provides.

Add the liquid to the blender first, then the yogurt, lime juice, salt, and spinach. Blend this first until the spinach is fully broken down and the mixture is bright green and smooth. Blending the spinach with the liquid first prevents green flecks and gives the cleanest, most even color. That deliberate, early blending stage gives the spinach genuine, undivided attention from the blades before any denser fruit is added to compete, letting it break down completely into a uniform, flawlessly green base.

Add the banana, pineapple, and mango. If using fresh fruit instead of frozen, add the ice cubes now. Blend on low to break everything up, then increase to high and blend until completely smooth, creamy, and glossy. Stop once or twice to scrape down the sides if needed. The smoothie should be thick and creamy but still pourable, with only tiny natural fruit flecks remaining and no visible spinach pieces. That low-then-high progression lets the fruit break down gradually on top of the already-smooth spinach base, protecting the final texture from any remaining visible pieces of either component.

Check the consistency. If the smoothie is too thick, add more cold liquid 1 tablespoon at a time until it pours easily. If it is too thin, add a little more frozen banana, frozen mango, or a few more ice cubes and blend again. Taste and add honey only if needed. Do not add too much liquid at once. This smoothie should stay thick and richly tropical, not watery. That deliberate restraint against adding too much liquid at once protects the smoothie's own concentrated tropical flavour from being diluted past the point of tasting genuinely rich.

Divide among 4 glasses, about 250ml each. Garnish with a few pineapple chunks, kiwi slices, and tiny mint leaves. Serve immediately while cold and freshly blended. That immediate serving captures the smoothie at its genuinely thickest, coldest, and most vividly green, before any real separation has the chance to begin.