"mostly consisted of" is a correct and usable phrase in written English.
It is used to describe a situation that was dominated by a certain thing. For example, "The meal mostly consisted of vegetables, but there were also some small portions of meat."
Her years in rep had mostly consisted of playing dizzy blondes, busty typists and maids.
Ten years ago, life mostly consisted of reading Henry Miller in Berlin Mietskasernen, and sipping Bitburger by the canal.
The group, which met monthly and shared dreams over pizza or Chinese takeout, mostly consisted of couples.
This mostly consisted of a soldier awkwardly playing a child's ukulele as Barlow broke out into a falsetto Back for Good.
Stagnant wages are the reason many Americans have yet to feel the benefits of the US recovery, which has mostly consisted of job growth and increased GDP.
Comcast's defence strategy mostly consisted of denying they were blocking, admitting they were blocking but insisting it was "reasonable network management" and claiming the FCC had no authority.
His audience mostly consisted of local officials and about two hundred Chinese and Nicaraguan employees in yellow and white hard hats and orange and blue jumpsuits.
I have never quite had the knack my mum had, and so my years of packed lunches have mostly consisted of leftovers, batch cooking, or salads.
Their military engagement mostly consisted of guerrilla skirmishes, and their exemption from conventional battles with the Japanese enabled them to boost their military strength several times over.
Gone are the days when Japan mostly consisted of families of four, says Norio Kamijo, director of Dentsu's Centre for Consumer Studies.
The deadbeat club has mostly consisted of the war-torn and the ungovernable: Sudan, Yugoslavia and Sierra Leone have all been members.
