Season with salt and pepper. Using a spatula, fold one third of the omelette into the middle, then turn the omelette onto a warm plate folding over itself. Serve immediately.

Dab 1/2 of the omelet with ricotta cheese and spread a portion of the vegetable mixture. Fold the other 1/2 of omelet over the vegetables and let cook about 1 more minute. Slide onto plate. Season ...