Corn: gently desilk, pull husk back over, tie off with sisal twine. Soak in water for a while. Throw on grill, rotating occasionally, until outer husk is charred. Pull husk back (makes a great handle), and season to taste. If it's good, fresh corn, just a hint of real butter. If it's mediocre, then more seasonings are ok to add.
Asparagus: coat with olive oil, apply coarse-grind seasonings and fresh pressed garlic. Place on grill, rotating once or twice, until cooked to your preference. Cooking at a higher heat slightly chars the head of the asparagus, the garlic, and the seasonings, without turning the asparagus to mush. A bit of coarse sea salt, and then eat. You can cook 'em the same way in the oven, using the broiler setting.
Cajun seasoning is a great thing, as long as it isn't too salty. It is great on fish and mac-n-cheese and most anything that doesn't need full-on Thai chili garlic sauce. Cajun hash browns, habanero salsa scrambled eggs with thin-sliced sauteed onions and zucchini, and some turkey bacon...great breakfast-for-dinner deal!!