Wife says I need to ask for help but I don't know what to ask for

She's been pretty patient with the whole depression thing but the other day she was like "you need to ask me for help instead of just shutting down." And I was like... but what do I ask for? Like "can you make dinner?" feels weak. I should be able to handle that stuff. But she's right that I end up just not doing anything and letting things pile up and then feeling worse. This is probably stupid but I genuinely don't know how to ask for what I need. Any advice?