Sauce: Beat eggs. Mix well with pizza sauce, milk and water and season with 3/4 tsp iodized fine salt (or 3/4 tbsp iodized rock salt). Set aside.
Combine salami, bell pepper and cheese to make filling. Divide filling into 5. Top 5 slices of bread with salami, bell pepper and cheese. Cover each piece with another slice of bread. Dip in sauce. Drain excess sauce.
Grill in pan with butter, flip when brown on one side to brown the other side.