This recipe comes from the back of a promo recipe card from Minute Rice and found in a large collection, date unknown. Recipe is typed below along with a scanned copy.

TUNA-RICE FLORENTINE

1 cup Minute Rice
1 cup boiling water
1/2 teaspoon grated lemon rind
1/2 teaspoon salt
3/4 cup mayonnaise
1/4 cup milk
1 teaspoon prepared mustard
2 cups drained, cooked spinach
1 can (7 oz.) tuna fish, drained
2 hard-cooked eggs, quartered
Thin strips pimiento (optional)

Measure long-grain Minute Rice, right from the box, into a shallow 1 1/2-quart baking dish. Stir in the boiling water, lemon rind, and salt. Combine mayonnaise, milk, and mustard. Stir into spinach. Spoon the mixture over center of rice in baking dish. Top with tuna fish. Cover and bake in hot oven (400°F.) for 20 minutes. Garnish with eggs and pimiento. Serves 4.