This is actually a pretty good quick supper recipe. Though I'm pretty sure the photo in the ad includes more than just one can of peas.
1959 recipe, 4 - 6 servings
1 1-lb. can Del Monte Brand Early Garden Peas
1/3 cup chopped onion
3 tbsp. butter or margarine
1 tbsp. cornstarch
1/4 cup chopped pimiento
3 cups hot cooked rice
1 6 1/2-oz. can chunk style tuna, drained and flaked
1/3 cup shredded Parmesan cheese
salt and pepper
Drain peas, reserving liquid. Saute onion in butter or margarine till tender. Add cornstarch dissolved in liquid from peas. Cook, stirring constantly, till thickened. Add peas and pimiento; heat. Combine hot rice, tuna and cheese. Season to taste. Pack into 1-qt. ring or other simple mold; turn out on hot serving dish. Serve with hot peas mixture, as shown.