Insalata di pasta tiepida con verdure e ananas alla griglia

This is going to be my weekly pasta entry for 'Presto Pasta nights' hosted by Ruth at Once upon a feast. I made it tonight and it was really good, so I thought it would be the best one to share for the week.

Insalata di pasta tiepida con verdure e ananas alla griglia (Warm pasta salad with grilled vegetables and pineapple)
(The doses I will refer to are for 2 people). Prepare ~1/3 lb rotelle pasta, cooked al dente (remember to put salt in the boiling water before throwing the pasta!). Drain, add a little olive oil and mix up (to prevent sticking). Let cool down. In the meanwhile, cut one eggplant in slices and grill it. Cut 2 small green zucchinis in slices and grill them too. Cut three slices of pineapple and grill those too. Cut two small tomatoes in halves and grill the halves too. Once everything is grilled, cut in smaller pieces (the pineapple and the eggplant slices in quarters, the tomato halves and the zucchini slices in half). Mix up with the pasta. Add small cubes of a hard cheese (for example, I love ricotta salata) and mix again. Season with a sauce made with olive oil, lemon and finely cut garlic, then add salt, oregano and pepper to taste... serve warm or cold... DELICIOUS!