My family loves these. My mom has been making them for a good 20 years or more - they are similar to the biscuits at Red Lobster (yum!).
2 cups of bisquick
1 cup of milk (I use 2%)
3/4 cup of grated cheddar
1 teaspoon garlic powder (don't use garlic salt)
Mix everything together. One thing I do that mom doesn't is I refrigerate it if I have time for about 15 minutes. It makes the biscuits puffier.
Bake at 425 for 8-10 minutes.