Sugar snap peas blanched for 30 seconds, add sesame oil, toasted sesame seeds, garlic, green onion, to taste.

Frozen peas (steam them in the microwave) tossed with olive oil, lemon juice, basil, salt & pepper. (Full disclosure, I got this recipe from Gwyneth Paltrow's goop enewsletter!)

Green beans, steamed and tossed with 1 tbs olive oil, 1 tsp prepared mustard, 1/2 tsp onion powder, 1/2 tsp italian seasoning.

Asparagus, tossed with salt and garlic powder and roasted, then squeeze some lemon on it before serving.

This isn't cooked, but sometimes I'll cut an avocado into small pieces and toss them with garlic powder, salt, and lemon juice.

There are some great suggestions
Let me add a couple
Turnips (cut up and roasted in EVOO
Spinach and garlic in EVOO
Roasted mushrooms

sauteed zucchini or summer squash (for variety, try sprinkling with basil, or marjoram)
steamed baby bok choy
sauteed spinach with garlic and raisins
green beans -- steam them for 2 minutes, shock them in ice water, then either serve cool and crisp, or saute