Dressing: Place ingredients in a small food processor. Blend 3-4 minutes until smooth (if the feta doesn't become completely smooth, that's okay - the flavor is amazing). Taste and add any additional salt and pepper, as needed. Set aside. 

Grill Corn: Ensure grill grates are clean and preheat grill to 450 degrees F. Place clean, shucked ears of sweet corn on a plate or baking sheet. Very lightly drizzle with olive oil and use your hands to massage oil into each ear of corn. Sprinkle lightly with salt. Grill sweet corn on direct heat for a total of 10-15 minutes, turning once or twice with grill tongs. Remove when corn is slightly charred. Let cool slightly and then cut kernels away from the cob.

Build Salad: Divide lettuce, avocado, cucumber, feta cheese, green onions, dill and grilled corn kernels between 4 bowls. 

Serve: Add dressing and toss to combine. Add fresh cracked pepper, as desired and serve with some grilled bread!