Blackstone Mediterranean Breakfast Sandwiches

Name: Blackstone Mediterranean Breakfast Sandwiches
Prep time: 10 min
Cook time: 10 min
Total time: 20 min
Cuisine: American, Mediterranean
Ingredients: 4 ounces diced pancetta; 4 tablespoons butter; 8 slices sliced sourdough bread (crusts removed if desired, I cut mine in circle with a 3 1/2-inch biscuit cutter); 4 eggs; kosher salt, pepper, breakfast seasoning blend (optional... I used Vittle Glitter, link to purchase in post above); 1/3 cup crumbled feta cheese; 1/4 cup shredded parmesan cheese; 1/3 cup pesto; 1/4 cup sliced sun dried tomatoes; Optional: more parmesan, chopped basil