Preheat your oven according to the instructions on the packaging of your cocktail pizzas. Typically, this will be around 400°F (200°C) or as specified on the package.

Place the frozen or refrigerated cocktail pizzas on a baking sheet or an oven-safe tray. You can line the baking sheet with parchment paper for easy cleanup if you like.

Ensure that there is some space between each pizza to allow for even cooking. They should not be touching.

Put the baking sheet with the cocktail pizzas in the preheated oven.

Bake for the time recommended on the packaging. This typically ranges from 8 to 15 minutes, depending on the brand and thickness of the pizza crust. Keep a close eye on them, and check for doneness based on the appearance of the crust and the cheese. They should be golden brown with bubbly and slightly browned cheese.

Remove the cocktail pizzas from the oven and let them cool for a minute or two before serving. They will be very hot right out of the oven.

Cocktail pizzas are best served hot and can be enjoyed as appetizers, snacks, or party treats.