Looking through my last few meal plans, weekly main meals have been -
Week 1 - 5 meat, 1 veggie, 1 meal out
Week 2 - 5 meat, 1 veggie, 1 fish
Week 3 - 3 meat, 3 veggie, 1 fish
Week 4 - 4 meat, 3 veggie
Week 5 - 5 meat, 2 veggie
Week 6 - 4 meat, 2 veggie, 1 fish
So, no, not all our dinners are meat, but the majority are. We choose meals based on what we fancy and cooking time available, not meat/veggie/fish, nor cost. We use a whole range of different meats.
Breakfasts are mainly not meat, but we will have the occasional sausage sandwich or bacon roll.
Lunches tend to be leftovers or soup or a sandwich or a salad, so could be meat or fish or veggie.
I must admit, I find it difficult to host vegetarians, as most veggie meals are not the "special" ones. Meat and fish dishes tend to have more wow factor to me - veggie dishes tend to range from "meh" to "pretty good for a meal without meat". There isn't a single veggie dish that would feature in my top ten favourites for example (or even my top 20).