I am not low carb, I just have go to meals when my Bg's are higher or just because I like them.
@Mel dCP is not a vegetarian, but she eats a pretty strict low carb diet and a lot of vegetarian meals. (she does eat seafood and eggs, cheese) she might have more ideas too
Usually the berry family, especially blueberries won't change your BG that much. There are also a bunch of the fake meats like tofurkey, beyond meat, Yves that are low carb. Tofu is great.
I like to eat veggie bowls. I love easy, so I buy the frozen mixes of veggies. The carbs are usually 12 in a whole bag, then I will take a protein, cubed plain tofu, flavored tofu, flavored seiten or one of the fake meats which adds 4-12 carbs. Then I will pick an extra flavoring, braggs aminos, gravy, cashews, parmegan etc (nutritional yeast and ground nuts, the recipe is on this site). then half it for a large bowl. I also love to have cauliflower rice with it and a whole bag of that is only 4 carbs.
Another few examples
Zucchini noodles (frozen bag 4 carbs) with spaghetti sauce and a fake meat etc, in this case I love Gardein meatballs, you could make your own too
Cauliflower rice or broccoli rice stir fried with coconut , or coconut milk, add veggies if you want.
I use sprouted tortillas, but there is low carb ones available
Make you own pizza, tomato sauce, oregano, olives, mushrooms and cheese(peppers, onions, etc)
Bake a tortilla and sprinkle with cinnamon (and stevia if you want sweeter) a great treat
Cream cheese and tomato sandwiches.
Making kebabs with veggies and tofu and marinating in a sauce you like and grilling or just baking
Marinating tofu and doing a slow bake to make it a chewier snack.
Sauces and seasonings change up the flavors of the same o same o
Here's some sites, but they vary on what they consider low carb and some have eggs, but it certainly should give you some ideas!
https://lowcarb-vegan.net/
https://www.staceyhomemaker.com/low-carb-vegan-recipes/
https://www.allrecipes.com/recipes/15475/healthy-recipes/low-carb/main-dishes/vegetarian/
https://lowcarbyum.com/category/special-diet/vegan/
https://www.ditchthecarbs.com/low-carb-vegetarian-meals/
https://www.veganatheart.org/high-protein-low-carb-vegan-foods/