I am a lover of the America's Test Kitchen Vegetarian Cook Book. There are a ton of options without citrus or nuts. This book helped me to be a better cook and a healthier vegetarian. Link to Book on Amazon: https://www.amazon.com/dp/B00UGBBWFK/ref=dp-kindle-redirect?_encoding=UTF8&btkr=1
What kinds of cooking methods do you have access to? Slow cooker? Oven?
Overall, I cannot recommend this book enough, to vegetarians and meat eaters alike. There are a few recipes in there that are naturally lower calorie - the rest are very easy to make low-cal (by swapping ingredients, bulking up with veg, or cutting portion size) For example, there are Corn and Poblano Hand pies in there that I have made in the past week - its a homemade pastry filled with corn, poblano peppers, pinto beans, and cheese. Following the recipe with my ingredients- each hand pie (about 6inch across) is about 315 calories, though this could easily be lessened by using less oil, more veg, less or no cheese, etc.
Without a microwave, there are many recipes (in this book and online) for quinoa salads and rice salads that have cooked veg, beans, and even dried fruit in them that are served cold and delicious!
I did Blue Apron and hated it. I followed the Hello Fresh recipes online and that was okay. I've been a vegetarian my whole life. I own about 10 cookbooks. My mom owns about 30. This is my first and the best. I recommend anything by America's Test Kitchen. DM me if you need any other cookbook recommendations.
https://www.amazon.com/Complete-Vegetarian-Cookbook-Foolproof-Recipes-ebook/dp/B00UGBBWFK
This was the first blog I followed. It is excellent. However, I did find her cookbook to be disappointing.