Why aren't there beef, bean AND cheese burritos?!

Why aren't there beef, bean AND cheese burritos?

In the grocery store, I see frozen burritos. I see beef and bean, beef and cheese, bean and cheese etc. But none with all 3. I'm always having to buy beef and bean burritos and add cheese. Now I know taco bell and stuff sells them but I never see them in the frozen food aisle. Why is this?

6 hours ago
And I don't mean the expensive stuff. I mean like the 10-to-a-pack del monterey bachelor burritos or whatever. You guys know what I mean.

I know exactly what you're talking about. I think it might be a "traditional" thing. Maybe they've just been doing it that way for years.

I add cheese to mine too. I fold a slice of cheese length-wise until it looks like a little stick. Then I rollover the burrito and lift up the flap, and stuff the cheese inside. It melts the cheese and tastes pretty good.