Puff pastry

Any chef can tell you that making puff pastry by hand is a long, laborious process, which is why many of them prefer buying it frozen. But there is an important caveat: it must be made with real butter, not oils or shortenings. Without butter, frozen puff pastry is nearly flavourless, which can lead to disappointing results when using it in recipes. All-butter puff pastry, however, is often better than homemade, since industrial rolling machines ensure every layer of butter is equal and even.
“I love it to make hand pies, like barbecue pulled chicken and cheddar with sautéed onions, or a chicken pot pie,” says Moore. “Use a sharp knife or pizza cutter and cut straight down so it rises high and even.”
Stock

When considering which frozen foods to buy, think of the foods chefs like to freeze themselves. “We keep our stocks and sauces like birria consommé frozen, because they’re time-consuming to make,” says Valles. Making a large amount of stock from scratch can use up every burner in a small restaurant kitchen, so leaning on freezers is key to having excellent stock to cook with later on instead of relying on canned or powdered stocks and broths. And yes, you can buy frozen stock or condensed frozen stock bases that you can constitute. They’re total game-changers.
Chicken breasts

Chicken is by far the most popular meat in Australia – and one of the most popular frozen foods too. Frozen chicken breasts thaw quickly and cook quickly, so by keeping them stockpiled in your freezer, you’ll always have an answer when someone in your house asks, “What’s for dinner?” And you won’t have to worry about using them up before they go bad in the fridge.
“Frozen chicken is the main thing I buy because so many people love it,” says Moore, who says that frozen chicken cooks and tastes just as good as fresh. With no drop in quality, this is one of the best frozen foods to always keep on hand for quick and easy dinners. “For meal prep, thaw chicken breasts, marinate and grill for fast meals that taste good. With basic pantry or freezer items, you can do tacos, salads or even dice it and add to risotto. There are so many different ways to make a meal.”