I meal plan. I shop weekly for grocery and DH usually does a Vic Market shop around once a month. I plan around what he brings home.
I also use Lentils a fair bit now..I make a lentil pie using short crust pastry most weeks. I have also added Tofu and Brown rice. This is a good one as you cook the brown rice in advance as it's a fried rice.
We have Spag Bol pretty reguarly, Stir Fry very reguarly (using Hokkien noodles).
The usual Steak and Veg.
I buy canneloni shells and do spinach and ricotta using frozen spinach..this is a really yummy quick meal (a little fiddly filling the canneloni shells).
Tonight is Torellini with a ready made pasta sauce. I buy the tortellini in bulk and then separtate and freeze.
My version of meal planning is we have a list of what meat DH has purchased at the market on the fridge and I keep my pantry now stocked with things I use reguarly like Lentils, tinned tomatoes.
I add lentils, tofu, spinach and ricotta to the list on the fridge as that helps me decide.
I decide usually in the morning by looking at the list and then defrost and prepare during the day.
I know of people who have meal plans like..Monday is chicken, Tuesday is Rice, Wednesday is Steak, Thursday is casserole and Friday is take away.
HTH