It’s Menu Tracker also revealed main courses at branded restaurants have soared in price by 10.1% since February.
In June 2022, the average main on a branded restaurant menu cost £12.69 against £11.53 earlier in the year.
Furthermore, the average price of any dish on leading branded restaurants was £9.02 in June – up by 7.4% from £8.40 in February.
Dish price rise
This rise is being driven by main courses and desserts with the latter rising 5.4% from £5.35 to £5.64.
Side dishes and starters have remained stable, according to Lumina. The average starter price is at £6.52 and side £3.46.
Elsewhere on branded restaurant menus, last month (June), the 20 largest businesses in this sector introduced a combined 137 new dishes, equating to more than a tenth (10.7%) of the total menu.
This is compared to February when far fewer (71) were added, which then equated to 5.7% of the total menu.
Menu inflation
Lumina Intelligence senior insight manager Katie Prowse said: “Like the general public, operators are experiencing rapidly increasing costs, whether that be produce, energy costs or staffing.
“While menu inflation at branded restaurants is outpacing the rest of the market, this is likely to even out over the coming months, as more operators are forced to increase costs at a steeper rate to maintain margins.
“Despite reaching a 40-year-high, inflation is not expected to slow so operators are going to have to work hard to drive footfall and increase consumer spend.”
Meanwhile, earlier this month (July), research from Fourth found a variety of food categories were being hit by rising costs.
The hardest hit commodities were dairy (40% rise), grain (up 35%), meat (35% increase), fish (up 25%) and fruit and veg, which rose by a fifth (20%).