For the Cucumber

1. Place the cut cucumber in a collander/strainer over a large bowl. 
2. Toss with the sugar and salt, then allow to drain for 15 minutes.

For the Green Beans

1. Preheat grill to medium/high heat. 
2. Toss the green beans, green onions and oil together in a large bowl.
3. Line the grill with grill mats if using.
4. Spread the green beans and onions over the grill mats and grill, tossing occasionally, until the vegetables are charred (12-14 minutes).
5. Return to the bowl and allow to cool.

To Finish

1. Add the drained cucumber to the green beans, then toss with the zest, lemon juice and dill.
2. Season with salt and freshly ground black pepper.
3. Garnish with additional dill and fresh lemon slices.