While both are similar, frittatas are started on the stovetop and finished in the oven. They're also generally much thicker than omelets and the vegetables are cooked in the eggs as opposed to folded inside. If you're looking for a good vegan omelet substitute, I'd try a u003cstrongu003eu003ca href=u0022https://www.vegrecipesofindia.com/besan-cheela-recipe-besan-chilla/u0022 rel=u0022nofollowu0022u003eBesan Chilla (Gram Flour Pancake).u003c/au003eu003c/strongu003e