1. Prepare Your Ingredients (Mise en Place):
* Shred your cheese if it’s not already shredded.
* Chop any vegetables or cook any meats (bacon, sausage) you plan to add into the quesadilla. Have them ready.
* Set out your tortillas, eggs, butter/oil, salt, and pepper.

2. Cook Optional Add-ins (If Using):
* If you’re adding raw vegetables like onions or bell peppers that you want softened, heat a small amount of oil or butter in a non-stick skillet (the one you’ll use for the quesadilla) over medium heat.
* Sauté the vegetables for 3-5 minutes until tender-crisp. Remove from the skillet and set aside.
* If adding spinach, you can quickly wilt it in the pan at this stage or add it raw to the quesadilla.

3. Fry the Eggs:
* In the same non-stick skillet (wipe it clean if needed), melt about 1/2 tablespoon of butter or add oil over medium to medium-low heat. The heat level is crucial for controlling egg doneness.
* Crack the eggs into the skillet. Season immediately with salt and pepper.
* Cook to your desired doneness:
* For a Runny Yolk (Recommended for ultimate deliciousness!): Cook for 2-3 minutes, or until the whites are set but the yolk is still liquid. You can baste the whites with a little hot butter from the pan to help them cook faster without overcooking the yolk, or cover the pan with a lid for the last minute to steam the tops.
* For a Jammy/Medium Yolk: Cook for 3-4 minutes.
* For a Fully Cooked/Hard Yolk: Cook for 4-5 minutes, or flip the egg gently and cook for another minute.
* Carefully remove the fried eggs from the skillet and set them aside on a plate.

4. Assemble the Quesadilla:
* There are two main methods for assembly:
* Method 1 (Fold-Over – Easiest for one quesadilla at a time):
1. Place one tortilla flat in the (now empty or wiped clean) skillet over medium-low heat. You can add the remaining 1/2 tablespoon of butter to the pan now if desired, or cook it dry.
2. Sprinkle about 1/4 cup of shredded cheese over one half of the tortilla.
3. Carefully place one fried egg on top of the cheese.
4. Add any of your cooked optional add-ins (sautéed veggies, bacon, etc.) around or on top of the egg.
5. Sprinkle another 1/4 cup of cheese over the egg and fillings.
6. Fold the empty half of the tortilla over the filled half to create a half-moon shape.
* Method 2 (Full Quesadilla – Good if making two separate smaller ones or one large one to cut):
1. Place one tortilla flat in the skillet over medium-low heat.
2. Sprinkle 1/4 cup of cheese evenly over the entire tortilla.
3. Place the fried egg(s) on one side or spaced out if using two eggs on one large tortilla.
4. Distribute optional add-ins.
5. Sprinkle another 1/4 cup of cheese over everything.
6. Top with the second tortilla. (If making two individual ones, you’d just use half the fillings per tortilla and then fold, similar to Method 1, but perhaps using two smaller tortillas to begin with).

5. Cook the Quesadilla:
* Cook for 2-4 minutes on the first side, or until the bottom tortilla is golden brown and crispy, and the cheese has begun to melt. Press down gently with a spatula occasionally to help it seal and cook evenly.
* Carefully flip the quesadilla using a wide spatula.
* Cook on the second side for another 2-4 minutes, or until it’s also golden brown and crispy, and the cheese is fully melted and gooey.
* If using the “Full Quesadilla” method with two tortillas, ensure cheese is melted throughout.

6. Rest and Serve:
* Slide the cooked quesadilla onto a cutting board. Let it rest for a minute or two. This allows the cheese to set slightly, making it less messy to cut.
* Cut the quesadilla into wedges (2-3 for a fold-over, 4 for a full).
* Serve immediately with your favorite toppings like salsa, guacamole, sour cream, and fresh cilantro.