Switching to plant based food is tough at times. Giving up meat and animal products is the easy part...there are tons of unhealthy vegan processed or junk foods out there. For all purposes potato chips are vegan...tortilla chips. Chips and guacamole are a vegan food...but it is not a healthy food. There are many overweight vegans out there..giving up meat and animal products will not necessarily make you thin. The switch to fruits and vegetables and unprocessed food is what helps...no margarine on that whole wheat bread... And not too much bread, as in many ways it is a processed food.
If you spend your days eating broccoli, cauliflower, peas, spinach, and beans..and eating your fruits and vegetables in their natural forms..your body will feel better.. This is what is key to whole foods, plant based living. Giving up the ease of processed food is definitely the tough part. I find bulk cooking spaghetti squash helps ... As I can add veggies and beans to it later for a quick lunch.
Green beans are one of my favorite snacks.. I love the bags that steam in the microwave.