Penne arrabbiata with crusty bread and a simple salad (Any past will do though).
Fish cakes (homemade or shop bought) with a salad (apple, walnut, cranberry, baby leaves, feta and a honey lemon mustard dressing)
Mushroom hot and sour soup with ramen (can substitute mushroom for pretty much anything) and the noodles make it a dinner rather than a lunch.
Stuffed gnochi (shop bought and usually tomato and mozzarella or spincach and pesto) and a salad (rocket, goats cheese, red grape, roasted apricot and a balsamic dressing)
Steak with a soy caramel sauce, homemade frites (dunno if that's the correct name but the ultra thinly sliced chips essentially), and a simple salad. This can also be fone with roast baby carrots and asparagus instead of salad.
Halloumi salad (leaves, croutons, pickled cabbage, red onion, avocado (smashed with lime and chilli) with a miso honey dressing).
Thai coconut and lime curry (I use tofu but works with chicken), basmati rice, homemade naan or tempura veg.
Pretty much all of them can be cooked from scratch in under 30 mins.