Quote:
I know some of the oil 'burns' off
No, it actually (unfortunately) doesn't.
Why not measure your oil before you pour it over your veggies. I measure out my olive oil by the Tablespoon before drizzling it. If I eat 1/2 the veggies, then I estimate that I've eaten 1/2 the oil. I don't worry about any left in the bottom of the pan or whatever after it's cooked. In this one area I am ok with over estimating.
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