Wife and I don't even bother going out to eat near Valentine's Day. We're going to cook at home again this year: pan seared sea scallops, risotto, and asparagus. We splurged and picked up an expensive bottle of wine that we'll drink after the kids go to bed.
The last weekend of the month my parents have the kids overnight and that will be our V-Day getaway as we stay in downtown Minneapolis, eat at the new Surly restaurant, catch a comedy show, then probably finish the night drinking tequila at Barrio.
OP - cooking is so simple. Get some fresh tuna steaks, good olive oil, baking potatoes, brussel sprouts, bacon, and shredded asiago cheese. Get a bag of salad, shredded carrots, croutons, and a dressing she likes.
1 hour before meal time, set the fish out on a plate so they come to room temperature.
Heat oven to 400F. Clean the potatoes, poke a few times with a fork, and rub with olive oil. Sprinkle with salt. Place right on the oven rack and cook in oven one hour (add 15 minutes if you got those huge baking potatoes).
Marinate brussel sprouts in a mixture of olive oil, balsamic vinegar, salt, and pepper for 10+ minutes. Place on cookie sheet and cook in oven with potatoes for ~45 minutes.
With ~15 minutes left on the potatoes and sprouts finishing, cook bacon until crispy and crumble it up.
With ~5 minutes left on potatoes and sprouts, bring a pan to medium high heat, add olive oil to coat pan. When pan is hot (oil is shiny) salt and pepper one side of the tuna and drop it in. At 2 minutes, salt and pepper the other side and flip. Cook 2 minutes longer and done. Inside will be red, outside cooked to a crisp (exactly what you want).
Sprinkle some shredded asiago cheese on the potatoes about 2-3 minutes before taking them out.
Serve with a simple side salad (grab a bag from the grocery store, toss in her favorite dressing, croutons, and carrot shreds) and a good bottle of wine and prepare to enjoy Valentine's day vagina.