How do you drain Velveeta Rotini & Cheese with Broccoli, without losing the rehydrated Broccoli?
One option is to line your strainer with cheesecloth, which will keep just about anything from getting through.  Since you're only putting pasta, water, and broccoli through it, uou can rinse and re-use the cheesecloth so it's cost effective.

I buy my cheesecloth in bulk at fabric stores, as it's significantly cheaper there than any food-related store I've ever been to.