Elisha's Roasted Veggie Sandwiches with Aioli Sauce

We're having roasted vegetable (asparagus, zucchini, onions and peppers) sandwiches with homemade Aioli sauce

I just slice the vegetables (leave the asparagus whole, just trim that) toss with Olive oil, salt and pepper and then roast at 450 until tender (you could grill the vegetables instead) let cool a bit. I don't remember where I got the sauce recipe but here it is.

Aioli Sauce:
3 TB mayo
1 TB dijon mustard
1 clove garlic, minced
1 TB basil
1 tsp lemon juice
Pepper
Pinch of Cayenne

Mix together, cover and chill to let the flavors mix. Spread on hearty bread top with vegetables and cheese (if desired)