Quick Flavor Boost

I had pesto in my freezer from last summer.

Recently, I was reading a recipe that called for pesto mayonnaise, which is just what it sounds like: pesto and mayonnaise. I made a little earlier today, using about equal portions of each, and slathered the mixture onto a grilled portobello mushroom sandwich. In addition to the pesto mayonnaise, I included a slice of sharp provalone cheese, grilled peppers and onions, a sliced tomato, and a toasted roll. I was surprised at how much of a flavor boost a single serving of pesto added. Next time I'm trying it on cold chicken.