Step 1

Preheat your oven to 350 degrees f.

Step 2

Heat the oil in a large oven-proof skillet over medium heat.

Step 3

Add the cabbage and sauté, stirring frequently, until it shrinks in size; this can take around 8-10 minutes, and you can add half at first, or as much as the skillet can fit.

Step 4

Then as it starts to shrink, add handfuls until all the cabbage is used.

Step 5

Add in the onion and carrots and season with a pinch of sea salt and pepper.

Step 6

Meanwhile, in a bowl, whisk the eggs together with the pressed garlic, oat flour, and shredded cheddar.

Step 7

Once the veggies start to get tender and golden in spots, stir in your egg mixture.

Step 8

Spread out the frittata with a spatula in the skillet, and reduce the heat to a medium-low.

Step 9

Allow it to cook for around 4 minutes to get a nice golden crust at the bottom.

Step 10

Transfer your frittata to your preheated oven and bake for 12-15 minutes, or just until the eggs are completely set in the center.

Step 11

Allow the frittata to cool for a few minutes before serving.

Step 12

You may slice it directly into the pan or flip it onto a serving platter.

Step 13

Garnish with chopped green onions.