The phrase "lacking in variety" is correct and can be used in written English.
It typically means that something is monotonous or lacking in diversity. Example: "The menu at this restaurant is lacking in variety. It's the same few dishes every time I come here."
We already know, without him, that morale is low, air-raid shelters are overcrowded, and food is lacking in variety.
Perhaps fearing that performing the book's 19 madrigals straight through might strike some listeners as lacking in variety, Ms. Toth added instrumental works by a Monteverdi contemporary (Giovanni Gabrieli) and two predecessors (Cipriano da Rore and Jacques Arcadelt) as palate cleansers separating groups of three or four songs.
But while Wales' attacking game has appeared blunt and lacking in variety for some time, what is often overlooked is that their last two Grand Slams were forged on defence.
Variety stores completely lacking in variety.
The year 1926 was lacking in variety entertainment, a fact largely attributed to the UK general strike that had occurred in May of that year.
The prison rations were lacking in variety resulting in an inadequate intake of several essential nutrients to prisoners.
The reviewer praised the animations in the characters, especially after the snakes eat Nibbly Pibbleys, and he enjoyed the two-player simultaneous mode; however, he said that the game lacked in variety, though the gameplay and challenge remained consistent throughout the course of the game.
Tasty, gluten-free, protein-rich — and, by many accounts, kosher for Seders lacking in carbohydrate variety — it has become a staple of Passover cookbooks.
However, northern Vietnam is a relatively poorly studied region seismologically, lacking in a variety of models for comparison (Huang et al. 2013; Pailoplee and Choowong 2014).
Whatever the game lacks in story it makes up for in adventure, variety and gameplay.
For contrasting color, I'm growing Yellow Brandywine, a juicy tomato with a rich flavor often lacking in yellow varieties.
