More and more people are opting to go meat-free for one day a week - so why not give it a try?
Advocates of Meat Free Monday say it helps participants save money and live a heathier lifestytle.
Meat-lovers might be dubious about going vegetarian once a week - but there are so many good recipes to follow, there's something to satisfy all tastes and appetites.
Here are five of our favourite meat-free dishes.
1. Cauliflower cheese
Take this most satisfying of side dishes and make it the star of your meal - for methods and tips, watch Jamie Oliver's video 'The Best Cauliflower Cheese' or to mix it up, follow this BBC Good Food recipe for broccoli and cauliflower cheese.
2. Aloo Gobi
This Bangladeshi, Pakistani, Indian and Nepali dish, made with potatoes, cauliflower and spices, will help satisfy cravings for a spicy dish - adjust the amount of chilli powder in this Meat-Free Monday recipe to suit your tastes.
3. Root vegetable crisps
Make a tasty vegetarian snack by baking your own vegetable crisps using any leftover potatoes or root vegetables - follow the steps in this Tesco RealFood recipe or this Meat-Free Monday recipe and season to your taste.
4. Bean chilli
You won't miss the mince in this tasty bean chilli from BBC Good Food, or if you have a little more time to spare, try Jamie Oliver's recipe, which is accompanied by a crunchy tortilla and avocado salad.
5. Stuffed peppers
A classic vegetarian main course - stuff your peppers with cheese and rice, or try this Mediterranean-style recipe. If you like Quorn, use this recipe to create a tasty filling, or alternatively try a quinoa filling.