You're asking a tricky question! It's hard to give an exact ounce amount for a cup of cooked lentils because the weight can vary based on a few factors:

* Type of lentil: Different lentils have different densities.

* Cooking method: Some cooking methods result in more water absorption than others.

* How tightly packed the cup is: A "cup" can vary slightly in volume.

However, here's a general guideline:

* One cup of cooked lentils is usually around 6-8 ounces.

Here's a tip:

* If you need a more precise measurement, weigh your cooked lentils after you've drained them.