Thinly slice the mini cucumbers into rounds. Then slice the mini sweet bell peppers into thin strips, removing any seeds. Try to keep all pieces about the same thickness so they absorb the dressing evenly. Thin slices also make the salad easier to eat and more visually appealing. Add the sliced vegetables to a large mixing bowl.
In a small bowl or jar, combine rice vinegar, coconut aminos (or soy sauce), sesame oil, and maple syrup. Add chili crisp or red pepper flakes if using. Whisk or shake well until fully combined. The dressing should taste slightly tangy, lightly sweet, and savory. Adjust sweetness or spice to your liking before pouring it over the salad.
Pour the dressing over the sliced cucumbers and peppers. Toss gently but thoroughly to coat every piece. Add sliced green onions and sesame seeds, then toss again. If using everything bagel seasoning, sprinkle it in at this stage. Make sure the vegetables are evenly coated so every bite is flavorful.
While you can eat it immediately, I like to let the salad sit for about 10–15 minutes. This allows the vegetables to soak up the dressing. The cucumbers soften slightly while still staying crisp. The flavors become more balanced and blended. Give it one last toss before serving.