Heat a contact grill. Spray the eggplant slices with nonstick spray; sprinkle with half the seasoning blend. Place the eggplant on the grill; close the cover. Grill the eggplant for 4 to 5 minutes or until tender. Remove from the grill.
Spray the zucchini slices with nonstick spray; sprinkle with the remaining seasoning blend. Place the zucchini on the grill; close the cover. Grill for 2 to 3 minutes or until tender. Remove from the grill.
Meanwhile, place the cottage cheese in a fine-mesh strainer. Shake the strainer gently to drain. In a small bowl, stir together the cottage cheese, basil and garlic. Spread about 2 tablespoons of cheese mixture on each slice of bread.
Divide the eggplant, zucchini, bell pepper strips and arugula among 4 slices of bread.
Top with the remaining slices of bread. Place the sandwiches in the contact grill for 2 minutes each or until heated through.