SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No.     )

DEL FRISCO’S RESTAURANT GROUP, INC.

(Name of Issuer)

Common Stock, par value $0.001 per share

(Title of Class of Securities)

245077102

(CUSIP Number)

December 31, 2013

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

x Rule 13d-1(b)

¨ Rule 13d-1(c)

¨ Rule 13d-1(d)

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

SCHEDULE 13G

SCHEDULE 13G

SCHEDULE 13G

SCHEDULE 13G

CUSIP NO. 245077102

930 S. Kimball Ave., Suite 100, Southlake, TX 76092

(1) through (4)

111 Center Street, Little Rock, Arkansas 72201

  See Items 5 – 11 on cover pages 2, 3, 4, and 5 of this schedule.

  N/A

Various persons other than the reporting persons have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, certain shares of the Common Stock reported on this schedule. None of such interests relate to more than five percent of the Common Stock.

See attached Exhibit A.

N/A

N/A

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

EXHIBIT A

The number of shares reported herein as beneficially owned by Stephens Investments Holdings LLC (“SIH”) is comprised of all of the shares beneficially owned by Stephens Investment Management Group, LLC (“SIMG”), a subsidiary of SIH and an investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E).

The number of shares reported herein as beneficially owned by Warren A. Stephens is comprised of (i) all of the shares reported herein as beneficially owned by SIH, a company owned by Mr. Stephens, and (ii) all of the shares beneficially owned by Stephens Inc., a broker or dealer registered under Section 15 of the Act and an investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E), which is owned by Mr. Stephens.

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, the undersigned agree to the joint filing with each other on behalf of each of them of such a statement on Schedule 13G with respect to the shares of common stock, par value $0.001 per share, beneficially owned by each of them of Del Frisco’s Restaurant Group, Inc.

IN WITNESS WHEREOF, the undersigned have executed this Joint Filing Agreement as of the 14th day of February, 2014.