Preheat oven to 425 °F (218°C). While the oven is heating, prep ingredients.
Prep the vegetables for the pizza pockets per instruction above.
Cook the sausage: Heat a nonstick pan on medium heat. Once hot, add the oil, onion, and pepper. Saute until softened. Add the sausage and break into smaller pieces using a spatula. Cook until browned and no longer pink. Set aside.
Cut a piece of parchment paper and place on a baking sheet.
Make the pizza pockets: Roll out pizza dough until it is about 1/4 inch thick. Cut into large rectangles that will easily fold over, about 8 x 6 inches. On one half of the rectangle, spread a bit of marinara sauce, cheese, sausage with onion and pepper, oregano, and pepper flakes, leaving space around the edges for the dough to touch together.
Seal all edges, using a bit of water if necessary and crimping with a fork. Transfer to the parchment-lined baking sheet and bake in the oven for about 20 minutes until the dough is crisp and golden. While the pizza pockets are baking, make the salad and beverage.
Make the vinaigrette: Put the oil, vinegar, Italian seasoning, sugar and some salt and pepper in a jar with a lid, secure the lid and shake to combine.
Make the salad: Prep the salad ingredients per instruction above. Add to a bowl.
For the beverage: Mix all ingredients together.
When the pizza pockets are baked, set aside for 5 minutes to set.
Serve: Transfer the pizza pockets to a plate, dress the salad, and enjoy with the beverage (over ice if desired).