Im the same way and I tried the frozen dinners SmartOnes there supposed to be good for you and healthier and they actually taste good! They have a good selection and there very filling!
I bought a lot of single-serving frozen foods when pregs, Amy's natural brand was good (things like chicken teryaki bowl with rice) and there are a couple of Indian-food brands that tasted really good to me, one makes lamb vindaloo and lamb saag. Stouffer's makes very good mac-n-cheese and spaghetti. It was nice to have a selection, and for a meal to be ready in 5 or 7 minutes when I was hungry.
I totally understand you. Try making a sandwich. I had this problem am hour ago & my mom said "eat cereal, breakfast bar, here's yogurt" didn't want to cook either. Sandwich was satisfying & something to hold me off until hungry again.