Preheat oven to 400°F (200°C).
Cook sausage in a skillet over medium heat until fully browned. Drain any excess grease.
Chop your vegetables into small, bite-sized pieces.
In a large bowl, whisk together eggs, milk, cottage cheese, olive oil, and maple syrup until well combined.
Add flour, baking powder, and salt to the bowl. Mix until just combined—do not overmix.
Fold in the cooked sausage, chopped veggies, and most of the shredded cheese (reserve some for topping).
Divide batter evenly into a lined muffin tin (silicone liners recommended). Top each muffin with remaining cheese.
Bake for 23–27 minutes, or until the tops are golden and muffins are set in the center.
Let cool for 5–10 minutes before removing from the pan.