The phrase "a snack of a" is correct and usable in written English.
It can be used to describe something that is small or light, often in a humorous or informal context.
Example: "That movie was just a snack of a film, not something I would recommend for a serious viewing."
Alternatives: "a bit of a" or "a morsel of a".
The mostly happy ending is as satisfying as a snack of milk and cookies after a ninth grade softball game.
Auden and the other guests were served non-alcoholic eggnog and cider, and a snack of fresh mushrooms, a favorite Hobbit dish.
"The mostly happy ending is as satisfying as a snack of milk and cookies after a ninth grade softball game," Stephen Holden wrote in The Times in January.
Circle time — songs and dancing — took place in the center of a field, behind a farmhouse, followed by a snack of apples and pineapple chunks at picnic tables.
Tiella isn't smooth enough to succeed as a high-end, four-course Italian restaurant, but for a snack of tiella, a bite of pasta and an excellent, house-made ricotta cake or tiramisu ($8), it's welcome.
One of the best dishes was a snack of cashew nuts tossed in a hot wok with chilli and friable basil leaves.
But the troops and their Eskimo Ranger guides gathered in a field of flowering moss anyway to join them for a snack of berries and a friendly chat before the patrol resumed.
A snack of baked meatballs consists of a small platter of three tennis-ball-size beef meatballs, in a zesty marinara with ricotta and fresh mozzarella, attended by big hunks of good toasted baguette-style bread.
After you've caught your fill of pompano, whiting and Spanish mackerel, retire to Hook'd Pier Bar & Grill (16201 Front Beach Road; hookedpierbar.com) at the base of the pier for a cold beer and a snack of honey-and-lime fried plantains ($5.95).
