1. 1. Preheat the oven to 350°F (175°C).

2. 2. In a skillet, cook the bacon until crispy. Remove from the skillet and crumble it.

3. 3. In the same skillet, sauté the chopped onion and minced garlic until fragrant.

4. 4. In a mixing bowl, whisk together eggs, shredded cheddar, shredded smoked gouda, and crumbled bacon.

5. 5. Add the sautéed onion and garlic to the egg mixture and stir to combine.

6. 6. Pour the mixture into a greased baking dish.

7. 7. Bake in the preheated oven for 25-30 minutes or until the casserole is set and golden brown on top.

8. 8. Let it cool slightly before serving.

9. 9. Enjoy your cheesy bacon and egg breakfast casserole!