Tomato, Shrimp And Pasta Salad
["2 medium fresh tomatoes", "4 oz. (1 1/4 c.) shell pasta, uncooked", "8 oz. shelled and deveined shrimp", "1 c. peeled, seeded and sliced cucumber", "2 Tbsp. mayonnaise", "1/2 c. sliced scallions", "2 Tbsp. dill weed", "1 tsp. Dijon-style mustard", "1/2 tsp. salt", "1/8 tsp. black pepper", "2 Tbsp. plain yogurt"]
["Use tomatoes held at room temperature until fully ripe. Core tomatoes.", "Cut in wedges (makes about 2 cups); set aside. Cook pasta", "according", "to", "directions until tender, but firm, about 10 minutes; drain.", "Rinse with cold water; drain well."]
["tomatoes", "shell pasta", "shrimp", "cucumber", "mayonnaise", "scallions", "dill weed", "mustard", "salt", "black pepper", "plain yogurt"]