Avocado Turkey Panini

Name: Avocado Turkey Panini
Ingredients: 4 slices country style or other hearty bread (ciabatta rolls work well, too; see notes); 1/4 pound leftover shredded turkey or chipped deli turkey; 1/2 ripe avocado; 1 tablespoon mayonnaise; 1/8 teaspoon each kosher salt and pepper; 1 tablespoon olive oil; 4-6 slices Sargento Ultra Thin or regular Provolone cheese (may substitute variety of choice); 1 cup fresh spinach leaves; 1 roasted red pepper, sliced into thin strips (may use freshly roasted or marinated from jar)