This casserole is a bit juicy due to all of those wonderful veggies and no carbs to soak up the liquids. The meat and onions/peppers are cooked separately then layered into the casserole. As far as the extra liquid I imagine the cabbage is the culprit. Some cabbage tends to release more liquid than others. You could sauté the cabbage before adding to the casserole to remove the liquid. Or, I also have a similar recipe made in one-pot that may be more to your preference: https://wonkywonderful.com/low-carb-unstuffed-cabbage-casserole-recipe/ <- just cooke the meat and peppers separately 🙂