I batch cook a tomato sauce at the weekend with 6 tins tomatoes, garlic, onions, celery, courgettes (& whatever else veg I have lurking), basil etc. Slow cook on low for 12-24h, blending it all together after 8 or so.
That gets frozen in litre tupperwares.
Then for dinner - bag of mince & box of sauce from freezer in the morning, in pantry to defrost. When I get in - boiling water on for pasta. Brown mince, pour off fat, add sauce and simmer until pasta cooked. Takes 10mins.
Bacon pasta - same idea but I use chopped bacon fried crispy with half a tub of sauce, pasta and grated cheese.
Steak and salad.
Pizza takes 10 mins in a hot oven if you have the dough premade. Roll out, top with passata and basil, splodges of mozzarella, oven until bubbly. I put the flour/yeast/water etc in the breadmaker when I go to work on the timer so it's ready an hour before I get in, it gets that hour to rise.