How do you make food less hot from jalapenos?

Add some Scotch bonnet pepper, it's a mild pepper, during cooking. You won't be able to taste the bitterness.

If you're finished cooking, ALWAYS add dairy -- sour cream, yogurt, milk or cheese it will taste so good you wont stop eating. In no peppers there a chemical reaction that makes the pepper much much hotter/spicer almost unbarable.