3 new pasta bake Recipes

butter, divided, yellow onion, cut into medium dice, celery rib, cut into medium dice, carrots, cut into medium dice, salt & freshly ground black pepper, boiling potatoes, peeled and cut into medium dice, fresh thyme leaves, minced (about 6 sprigs) or 1/2 tsp dried thyme, chopped clams , juice drained and reserved, pasta shell, all-purpose flour, milk, breadcrumbs, grated parmigiano-reggiano cheese

penne pasta, eggs, beaten, garlic, fresh parsley, minced, butter, onions, chopped, celery, chopped, half and half or light cream, sharp cheddar, divided, swiss cheese, shredded, velvetta, louisiana hot sauce, white pepper, salt , pepper