For the best keto results choose a sugar free breakfast sausage with minimal fillers to keep carbs low and flavor high. If your sausage is quite salty you may want to reduce the added salt slightly. You can customize these muffins by swapping cheddar for pepper jack, adding a pinch of smoked paprika, or folding in finely chopped low carb vegetables like bell pepper or spinach in small amounts. To freeze, cool the muffins completely, place them in a single layer on a baking sheet until firm, then transfer to a freezer safe bag and reheat from thawed or frozen as desired.