Rotini with Pesto, Tomatoes and Spinach by Salad Foodie

My friend's daughter tasted this last year on a vacation and dubbed it the "Best Pasta Ever." I'll go along with her on that! It's a healthy and colorful vegetarian pasta dish that will serve 6 generously, or make heaped platefuls for 4 ravenous diners! I started with the recipe the chef gave her, but it was just a list of…