Grilled Ham Gruyere Sandwiches

This sandwich has one of the best sandwich spreads as its base:
a combination of mayonnaise and grated Parmesan cheese.
Then it's topped with smoky and suave Gruyere cheese,
thinly sliced ham, roasted red peppers, and basil leaves.

Ingredients:
2 Tbsp. mayonnaise
2 Tbsp. grated Parmesan cheese
8 slices cracked wheat or sourdough bread
4 (1/4" thick) slices deli smoked ham
4 slices Gruyere or Swiss cheese
1/2 cup roasted red pepper strips, drained
1/2 cup fresh basil leaves or fresh baby spinach leaves
2 Tbsp. butter

Directions:
In small bowl combine mayonnaise
and Parmesan cheese and mix well.
Spread on one side of each piece of bread.
Make sandwiches with the coated bread, Gruyere cheese,
ham, the red pepper strips, and basil or baby spinach.
Spread outside of sandwiches with the softened butter.
Grill sandwiches on dual contact indoor grill
or panini grill or griddle until toasted and crisp.