How often can you cut romaine lettuce?

Hi Angela, here is a link to information on how often you can cut it.

https://homeguides.sfgate.com/harvest-romaine-lettuce-garden-100845.html

We cut it as we need it. Sometimes tiny leaves sometimes we wait till it’s bugger like 6-7 inches

Lettuce can be harvested any time after true leaves form. For the best quality, better to pick early than late as lettuce allowed to grow too long may be bitter and tough.

To harvest crisphead, Batavia, and romaine varieties, cut the plant right at the soil line when mature, if you prefer to harvest full heads. You can do the same with butterhead and looseleaf lettuce, but I prefer to harvest only the outer leaves as needed. This keeps the plants in production longer. Try to harvest in the morning when the leaves are crisp, sweet, and full of moisture.

When the crown of a lettuce plant elongates, it's about to bolt to produce seed and the plant has passed its prime. Yank the lettuce plant out, toss it on the compost pile, and replant the space with another crop like bush beans, or with another lettuce seedling.It is best to plant in succession staggering starting seeds/plants so they mature at different rates prolonging the time you'll have fresh lettuce here is info. https://www.tractorsupply.com/know-how_home-garden_gardening_planting-techniques-for-a-longer-vegetable-harvest also don't pull up all your plants let some bolt/go to seed so you will have the seeds to save for next year.