On Monday I made baked ziti. I made two pans of it, I cooked one and had it for dinner, I put the other one in the fridge. The pasta, cheese and meat were all cooked.
Can I have it for dinner tonight ?
I think it would be safe…
What time do we eat?
Another vote to eat it!
dear lord no… I hear that 4 day old pasta kills people… oh wait… did you say monday?? oh ok… you should be fine… 
It should be fine if you did not allow it to sit at room temperature for any length of time before putting it in the fridge. If it sat at room temperature for over 2 hours you might be OK but if you were a restaurant you wouldn’t be allowed to serve it.