DP is not home for dinner one week out of two so I tend to keep those dinners REALLY simple as it's just me and the girls.

I've found it easiest to do meat and two or three veg. So the meat tends to be something like chicken tenders, rissoles (I make some really good chicken and veg ones from scratch but otherwise I buy them from the butcher), snags.

Potatoes I either do mashed or wedges (great for finger food for DD2)

Veggies could be something as simple as frozen peas, microwaved broccoli or beans, cauliflower cheese or stirfried snowpeas or beans/carrots cooked in a little sesame oil and with some roasted flaked almonds.

Other regulars here:

blue cheese pasta sauce
pumpkin soup (recently discovered you can make it more substantial by adding gnocchi)
chicken cacciatore done in the slow cooker
chilli (I add some veggies like zucchini, mushrooms, corn plus sultanas to mine)
bought roast chicken with bought asian noodle salad and tossed together
curries