We have a similar sort of routine which helps as a starting point:-
Sunday - roast of some sort, usually a big chicken, then do stock on sun night
Monday - soup with half the stock, veg, lentils. With the soup we have bake at home baguettes, and bits from fridge like cheese, salad, houmous (which kids stir into the soup?!)
Tues - meal with leftovers from roast, if chicken I do chicken risotto with rest of stock, if lamb I do a curry
Weds - eggs of some sort - usually cheese omelette, or fried egg, baked beans and homemade chips
Thurs - mince - big lot of bolognaise and use half for chilli & rice or spaghetti Bol
Fri - fish night! We have a fish van outside school on a friday so I buy White fish and make goujons or bake with spread of pesto and have with mash & veg
Sat - rest of bolog into lasagne or shep pie.
I find it easier to have a plan then change it if needed or stick to it if I'm stuck for creative ideas. Our plan is also determined by after school clubs - so eggs are on a weds because we get home late from activities and they're quick, whereas we get home on thurs before 4 so easy to do mince.