Easiest summer cooking method IMO is packet cooking, so why not fresh broccoli with garlic and lemon cooked on your grill or in your oven.

Recipe inspired by Pillsbury which would work also nicely for several vegetables such as cauliflower, asparagus, zucchini and squash.

Recipe
1 head broccoli (fresh, cut into large florets, and slice stem and include)
1/2-1 lemon, juiced over broccoli (roll the lemon to release the juices before cutting/squeezing)
2 tbsp Parmesan cheese (shreaded or grated)
1-2 tsp garlic powder (or fresh minced garlic)
Oil spray (or 1 tsp olive oil, drizzled)
Salt and pepper to taste
Red pepper flakes (optional)

Directions:
This is easy-peazy to do. Wash broccoli, cut into large florets and be sure to slice the stems and include. Place broccoli on a large piece of oil-sprayed aluminum foil. Squeeze lemon over broccoli, sprinkle with garlic, pepper, Parmesan cheese and for extra heat sprinkle some red pepper flakes.

Close foil packet by folding top and slides together, leaving some space for expansion as it cooks. Place in indirect heat on the grill for 15 to 25 minutes depending on heat of grill and how crispy or soft you like the broccoli.

Serve immediately but any leftovers are delicious cold, so cook a double batch if you can.