Downtown Long Beach has some good options. High end, I would go with 555 for steaks or L'Opera for Northern Italian.
For an ocean view and moderate prices, try the Yardhouse or Parker's Lighthouse near the Aquarium.
Sports fans would love Phil Trani's just off the 405 for good casual fare.
Where the 405 meet the 710 is generally not a location where people would want to hang out...industrial warehouses and a bad portion of Long Beach doesn't have a whole lot of reputable places to eat.
I enjoy La Creperie in Belmont Shores. They have a lovely cheese and pate plate for an appetizer, and the crepes are awesome! It's closer to the 405.
I also like Roscoe's Chicken and Waffles on Broadway close to the downtown Long Beach area. It's close to the 710. Also close to the 710 is Parker's Lighthouse at Shoreline Village. Great location...you can see the Queen Mary docked across the bay, and really good food. I think it's listed on the OpenTable prix fixe restaurant list.
435 Shoreline Village Drive, Long Beach, CA 90802
Roscoe's House of Chicken
730 E Broadway, Long Beach, CA 90802
La Creperie Cafe
4911 E 2nd St, Long Beach, CA 90803
that's only one specific area. Also close to the 405/710 is Cal Heights and Bixby knolls, both very nice areas (and wrigley, too!). Best lunch spot in the area is Bake 'n' Broil, on Atlantic, roughly 37th. Great burgers, soups, sandwiches and, of course, red velvet cupcakes. Not fancy, but really good. Baja Sonora is also prety good if you want Mexican and the Bamboo Teri house does very servicable rice bowls, etc. (both on Atlantic, just north of 405).
The area adjacent to the 405/710 intersection is home to some of the priciest real estate in all of Long Beach. Virginia Country Club Estates is about as nice an area as you will find in Long Beach, so maybe you should do a little more research before you go condemning a neighborhood you know nothing about...That said, Yes, there are some very good eating spots nearby. Blackbird Cafe, The Factory, Baba Ghanouj, Elsie's Tea Room, Delius, Bake N Broil, Hof's Hut, Phil Trani's and Kinokawa to name a few. All different levels as far as price and decor.