We have been eating more veggies and less meat here as well. I don't cook vegan because we like cheese and dairy too much, but a couple meatless dishes I make are:
Spaghetti Squash Bake....I roast a spaghetti sauce along with a large pan of fresh veggies sprinkled with some olive oil and salt and pepper. I use carrots, asparagus, broccoli, onions, red peppers, mishrooms, etc. I cook them all for about an hour at 400 degrees. Then I basically scoop out the spaghetti squash and put in 19x13 casserole dish. I mixin the veggies with some pastasauce and mozzarella cheese. I top it with more sauce and sprinkle some parmesan on top amd bake for about 20 minutes. So yummy and very healthy.
Broccoli and Cheddar Soup....made this today for dinner. I make a roux with butter and flour....add milk, chopped fresh broccoli, chicken or vegetable beoth and sharp cheddar.
Mashed Cauliflower...I boil cauliflower(chopped) until softened. Then basically drain and mash likeyou are making baked potatoes....add some milk and butter till it is the consistency of mashed potatoes.
Vegetarian Chili....I use McCormicks chili Seasoning Mix. I add beans, tomato sauce and a ton of fresh chopped veggies. I throw in crocpot and simmer it all day.
Jambalaya...I use Zatarains Mix and add veggies and some shrimp.
If you are doing strictly vegan mostof these won't work. But they may give you some ideas.....at least I hope they will.

Veggie and RiceSoup....I basically dump everything together and let it cook all day. Vegetable broth, tomato sauce, large can diced tomatoes, one can Great Northern Beans, celery, onions, carrots, corn and one large can diced tomatoes along with garlic powder and italian seasoning. Add rice half hour before you serve.
Vegetable Omelet or Scramble....eggs and sauteed veggies.