Tuna Sashimi with Orange Glaze

Yield:	4 Servings
Categories:	Fish, Seafood

2		Ripe plum tomatoes
2	c	Fresh orange juice
2	tb	Green peppercorns in water drained
1/2	ts	Salt; or as desired
1/4	c	Vegetable oil
1	lb	Fresh tuna; in 1/4-in-thick slices
2		Oranges; peeled, in sections