In a large bowl whisk together the marinade ingredients (2 tablespoons red wine vinegar, 1 tablespoon lemon juice, 1 minced garlic clove, 1/2 teaspoon dijon mustard, 1/2 teaspoon sugar, 1 teaspoon oregano, 1/4 cup olive oil, 1/4 teaspoon salt and 1/4 teaspoon pepper). Add 1/2 a sliced red pepper, 1/2 a sliced red onion, and 1/2 a thinly sliced zucchini and toss to combine. Set aside to marinate for about 15 minutes.
While the vegetables are marinating, preheat a pizza stone in the oven, as high as it will go (mine goes to 550),
On a large sheet of parchment paper sprinkled with a little semolina or flour, stretch the pizza dough out into a 12-14 inch circle. Spread the pizza sauce evenly over the dough, leaving a 1-inch border uncovered. Sprinkle 2 cups shredded mozzarella over the sauce. Remove the vegetables from the marinade and spread them evenly over the cheese.
Sprinkle the pizza evenly with the 1/4 cup sundried tomatoes, 1/4 cup kalamata olives, 1/2 cup feta, and 1/4 cup shredded Parmesan.
Carefully transfer the pizza to the pizza stone in the oven using a pizza peel or the back of a large baking sheet, and bake for 8-10 minutes (this will depend on how hot your oven is), until cooked through, with the cheese melted, golden and bubbly,
Remove the pizza from the oven and let it rest about 5 minutes. Sprinkle with crushed red pepper and chopped basil to taste, before slicing and serving.